1 1126-3278 انجمن اپتیک و فوتونیک ایران 1656 Special Design and Simulation of a Tunable Nano-Sensor based on Plasmonic Perfect Absorber Hamooleh Alipour Abbas b Mir Ali c Farmani Ali d b Department of Electrical Engineering, Lorestan University, Khorramabad, Iran c Department of Electrical Engineering, Lorestan University, Khorramabad, Iran d Department of Electrical Engineering, Lorestan University, Khorramabad, Iran 1 3 2019 25 ICOP & ICPET 2019 1 4 07 06 2019 07 06 2019 In this paper, a highly sensitive and tunable nano-sensor based on metal-dielectric-metal structure is presented. Actually, the goal is to propose a nano-sensor by using perfect absorbing. Sensitivity and tunability of all optical sensors are important parameters in their design, which are investigated by using numerical and analytical methods. Results show that the proposed sensor has Max sensitivity of 693/8 nm/RIU with refractive index change of Δn=0/05, and Figure of Merit (FoM) equal to 9/8. Also, the proposed nano-scale sensor can operate as a light propagation controlling with slow and fast light. By using of silver metal in the sensor structure, the fast and slow light coefficient is obtained of 220 and 70, respectively.
1663 Special Study of distribution modes and optical bistability in nonlinear plasmonic nanoresonator fill with Chalcogenide Dehmardeh Fatemeh Hatami Mohsen 1 3 2019 25 ICOP & ICPET 2019 5 8 07 06 2019 07 06 2019 In this paper we study numerically With repeat method  distribution modes and the bistable behavior of a nonlinear metal-dielectric-metal (MDM) plasmonic nanoresonator at telecom wavelength. In this system a MDM waveguide, vertically coupled to stub filled with highly nonlinear coefficient chalcogenide glasses to make a nonlinear plasmonic nanoresonator. The result of this research can be used for all optical switching and memory 1679 Special Producing and swapping of the entanglement of coherent states towards the quantum repeater protocol Ghasemi Mahnaz g Tavassoli Mohammad kazem h g Atomic and Molecular Group, Faculty of Physics, Yazd University, Yazd h Atomic and Molecular Group, Faculty of Physics, Yazd University, Yazd 1 3 2019 25 ICOP & ICPET 2019 9 12 07 06 2019 07 06 2019 In this paper we consider the entangled coherent states production using beam splitter as well as the entanglement swapping via the Bell state measurement method. We consider four locations A, B, C and D with specified distance. At first, the entangled states for locations (A, B) and (C, D) have been produced separately by using beam splitter. Finally, the entanglement from the entangled states (A, B) and (C, D) is swapped to the pair (A, D) using Bell state measurement method. The locations can be easily generalized to  locations where  and so one can introduce this model as a quantum repeater. 1670 Special Design and optimization of tip-enhanced Raman spectroscopy system Bahreini Maryam i i Hazrat-e Masoumeh University, Qom 1 3 2019 25 ICOP & ICPET 2019 13 16 07 06 2019 07 06 2019 Tip-enhanced Raman spectroscopy (TERS) method provides chemical images on a nanometer scale from different surfaces by combining the chemical sensitivity of Raman spectroscopy and high resolution of the scanning probe microscopy (SPM) techniques. In this paper, an optimization of tip-enhanced Raman spectroscopy (TERS) system has been studied theoretically. In order to design and to construct a high efficiency TERS system as well as to achieve the best signal enhancement, it is necessary to recognize and simulate effective parameters. The tip and substrate structural parameters as well as the angle of laser radiation to tip are the most important factors for obtaining an optimal TERS configuration and the TERS system with two material of silicon and gold has been designed. The TERS system with the silicon tip is simpler and less costly, while the system with gold tip brings more enhancement.  Hope that the high-gain TERS systems designed and presented in this paper will be used in empirical configuration. 1693 Special Design of a Plasmonic Electro-Optical Absorption Modulator Based on Two Active Layers of Barium Titanate and Indium Tin Oxide Es'haghi Pouria j Safaei bozorgabadi Abolfazl k Bolorizadeh Mohammad agha l j Physics Department, Yazd University, Iran k Physics Department, Yazd University, Iran l Physics Department, Yazd University, Iran 1 3 2019 25 ICOP & ICPET 2019 17 20 07 06 2019 07 06 2019 In this paper, a multilayer plasmonic electro-optical absorption modulator is introduced based on two active layers of barium titanate (BaTiO3) and Indium tin oxide (ITO). It is assumed that the BaTiO3 layer is a birefringent crystal and the Pockels effect occurs in this layer while the free carrier dispersion effect takes place in the ITO layer. Here, we study the effects of the thicknesses of the active layers on the modulator performance. By applying voltage to the silver layers, therefore, an electrical field is formed in the two active layers and the refractive indices of the layers are changed. In order to simulate this modulator, the Nelder-Mead method is implemented to solve the obtained dispersion equation for the proposed multilayer structure at the wavelength of 1.55 µm. Our simulation results indicate that the proposed structure can be used as a plasmonic electro-optical modulator. 1702 Special Fabrication of nano-structured plasmonic tweezers based on colloidal lithography Khosravi Mohammad ali m Darbari Sara n m Department of Electronic, Tarbiat Modares University, Tehran, Iran n Department of Electronic, Tarbiat Modares University, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 21 24 11 06 2019 11 06 2019 In this paper, we fabricate gold structures in different dimensions using the colloidal lithography method, which is less costly and easier than other lithography methods, Then, using the surface plasmonic stimulation of these structures, they can be used as plasmonic tweezers for particle trapping, and lab on chip devices. Two of the important advantages of these plasmonic tweezers Compared with other plasmonic tweezers are: The relative simplicity of their fabricating process and the use of a desired wavelength laser (using the change of fabricating parameters) to stimulate surface plasmons. 1709 Special Classification of Chitosan Nano-fibers by Speckle Patterns Ganjkhani Yasaman o Rezvan Mohammad p Farzaam rad Vahideh Bazzar Masoomeh Yar Mohammad Moradi Alireza o Department of Physics‎, ‎Institute for Advanced Studies in Basic Sciences (IASBS) p Department of Chemistry, University Malaya, 50603 Kuala Lumpur, Malaysia 3Department of Physics, University of Zanjan School of Mathematics and physical science, Faculty of science and engineering, University of Hull, Hull, United kingdom Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology School of Nano Science, Institute for Research in Fundamental Sciences (IPM) 1 3 2019 25 ICOP & ICPET 2019 25 28 11 06 2019 11 06 2019 In this paper an important application of speckle pattern analysis is investigated. Nano-fibrous Chitosan and its derivatives are important polymers for biomedicine and medical sciences. Wound healing and drug delivery are two of the most considerable applications of these polymers. Recently, combination of Chitosan with some synthetic polymers has improved their properties, i.e. their solubility. Bio-speckle analysis is a simple, nondestructive and non-contact method and has been extensively applied in biomedicine, agriculture and biology. A new synthesis of Chitosan with the commercial name of CSD in two forms of nano-fiber and membrane is investigated and classified by the use of speckle analysis.  1715 Special Entanglement of Photon-Added Coherent States Under Amplitude Damping Keshavarz Hamidreza Honarasa Gholamreza Faghihi Mohammad javad Department of Physics, Shiraz University of Technology, Shiraz Department of Physics, Shiraz University of Technology, Shiraz Department of Photonics, Faculty of New Science & Technology, Graduate University of Advanced Technology, Mahan, Kerman 1 3 2019 25 ICOP & ICPET 2019 29 32 13 06 2019 13 06 2019 In optical communications, amplitude damping due to the absorption of transmitted photons is the main source of decoherence. In this paper, the entanglement properties of photon-added coherent states under amplitude damping are investigated using concurrence criterion. The results show that as the difference between photons added in the two modes increases, the entanglement increases. 1723 Special Design and Simulation of All Optical Encoder Based on Photonic Crystal Couplers Etemadi far Navid Tavousi Alireza Rakhshani Mohammad reza Faculty of Engineering, Hatef Higher Education Institute, Zahedan Faculty of Engineering, Velayat University, Iranshahr Faculty of Engineering, University of Zabol, Zabol 1 3 2019 25 ICOP & ICPET 2019 33 36 16 06 2019 16 06 2019 In this paper, a photonic crystal based encoder consisting of two hexagonal shaped couplers in 2D square lattice of dielectric rods in air is proposed. Waveguides have been created by removing dielectric rods in the structure, and rods with smaller radii have been used to achieve the proper couplers operations. The proposed structure can generate a two-bit binary code in the output, according to the order of active inputs, without the use of nonlinear effects. To realize this structure, an OR gate is designed, then the two OR gates are combined to consolidate the desired encoder. Best delay time and the dimensions of the proposed structure are about 166 fs and 390 μm2, respectively, and the switching rate is 6THz. 1740 Special Enhancement of Terahertz Photoconductive Antenna Output Power Based on Regular Arrays of Copper Metal Nanoparticles Alizadeh Amir Nazeri Majid Sajedi Ahmad Department of Laser & Photonics, Faculty of Physics, University of Kashan, Kashan, Iran Department of Laser & Photonics, Faculty of Physics, University of Kashan, Kashan, Iran Department of Laser & Photonics, Faculty of Physics, University of Kashan, Kashan, Iran 1 3 2019 25 ICOP & ICPET 2019 37 40 17 06 2019 17 06 2019 In this paper, the design of terahertz (THz) photoconductive (PC) antenna based on regular arrays of copper metal nanoparticles is proposed. The major problem in development of THz PC antennas is their low output power. To overcome this limitation, the THz PC antenna based on copper metal nanoparticles is proposed and implemented. By optimizing the size and space of copper nanoparticles, we can enhance the output power and increase efficiency of the antenna without change in the peak frequency of antenna. By designing and simulating a bow-tie THz PC antenna based on copper metal nanoparticles and compare with simple state, in absolutely same conditions, we will see, the antenna efficiency and output power of THz pulse is amplified. 1741 Special Design and Simulation of Metamaterial Unit Cell in Terahertz Band and Electromagnetic Parameters Retrieval Alizadeh Amir Nazeri Majid Sajedi Ahmad Department of Laser & Photonics, Faculty of Physics, University of Kashan, Kashan, Iran Department of Laser & Photonics, Faculty of Physics, University of Kashan, Kashan, Iran Department of Laser & Photonics, Faculty of Physics, University of Kashan, Kashan, Iran 1 3 2019 25 ICOP & ICPET 2019 41 44 17 06 2019 17 06 2019 In this paper, a metamaterial unit cell in terahertz band is designed and simulated and it’s electromagnetic parameters such as permittivity, permeability, impedance and refractive index is retrieved. Use of  the periodic structure of the metamaterial in terahertz photoconductive antennas due to the influence on electromagnetic parameters of antenna in contact with electromagnetic waves, can improve output power and directivity of antenna. Unit cell structure is composed of two split circle rings and wire placed on a substrate of semiconductor material. 1744 Special Influence of substrate on structural and optical properties of CdS thin films growth using chemical bath deposition (CBD) Maghouli Malihe Eshghi Hossein Faculty of Physics, Shahrood University of Technology, Shahrood, Iran Faculty of Physics, Shahrood University of Technology, Shahrood, Iran 1 3 2019 25 ICOP & ICPET 2019 45 48 17 06 2019 17 06 2019 In this study, cadmium sulphide (CdS) thin layers are deposited on glass and FTO substrates by chemical bath deposition technique. The FESEM images showed the influence of substrate on morphology and variations of nano-grain sizes in such a way that their average sizes are changed from about 70 to 100 nm, respectively. The results of XRD spectra indicated the effect of substrate on the improvement of the crystallinity of the CdS layer grown on FTO. Analysis of optical properties revealed that with variation in substrate, the optical band gaps of the layers are reduced from about 2.41 to 2.36 eV. 1747 Special An investigation of gain enhancement in waveguides doped by Ti and Er using an chalcogenide layer Dehghan Hasan Zakeri Abdolnaser Ahmadi Keyvan Department of Physics, Shiraz University, Iran Department of Physics, Shiraz University, Iran Department of Physics, Shiraz University, Iran 1 3 2019 25 ICOP & ICPET 2019 49 52 18 06 2019 18 06 2019 A combination of an  chalcogenide waveguide and a channel  waveguide presents a suitable and practical device for transmission and processing of signals. Moreover using Er in these waveguides enhances the gain and increases the quality factor. Putting these waveguides together provides development of a new group of waveguide systems having higher potential and complexity. We have shown in this work that the presence of a chalcogenide layer facilitates the overlap between the mode profile and Er concentration distribution profile in Lithium Niobate waveguides and hence enhances the optical gain. By increasing the  layer thickness it is tried to achieve the optimum gain by investigating the mode pulling and the overlap data. We could increase the overlap between the mode profile and Er concentration distribution profile in Lithium Niobate waveguides by 350 % and the optical gain by 84 %.   1750 Special Designing a silicon waveguide for tunable wavelength conversion based on modulation instability Hosseinabadi Shahrzad Pakarzadeh Hasan Hosseini Seyed mahdi Department of Physics, Shiraz University of Technology, Shiraz, Iran Department of Physics, Shiraz University of Technology, Shiraz, Iran Department of Physics, Shiraz University of Technology, Shiraz, Iran 1 3 2019 25 ICOP & ICPET 2019 53 56 18 06 2019 18 06 2019 In this paper, a silicon waveguide is designed so that by changing its geometry the dispersion curve is controlled. Using the modulation instability based on the four-wave mixing in the anomalous dispersion regime, the tunable wavelength conversion in the infrared region is simulated. This type of waveguide has transmission losses less than 1 dBcm-1 for waves propagated in the infrared region which is much less than those of conventional optical fibers. 1754 Special Simulation of Gaussian Beam Propagation in an Optical Cloaking System by ABCD Law Barmoumanesh Kavosh Keshavarz Alireza Hatami Mohsen Department of Physics, Shiraz University of Technology Department of Physics, Shiraz University of Technology Department of Physics, Shiraz University of Technology 1 3 2019 25 ICOP & ICPET 2019 57 60 18 06 2019 18 06 2019 In this paper, Cloaking will be introduced by using the paraxial optics method and ABCD law. In this way a cloaking system consists of four thin alignment lenses is used, so that the center of all the lenses are placed on an optical axis. The purpose of this project is to simulate Gaussian beam in this cloaking system to identify cloaking regions. Results show that cloaking regions around the central optical axis form as a ring. 1756 Special Improvement Microstrip Patch Antenna Bandwidth Using Photonic Crystal Structure Kondori Hamideh Faculty Member of Zahedan Payame Noor University 1 3 2019 25 ICOP & ICPET 2019 61 64 18 06 2019 18 06 2019 The use of photonic crystal structures have been of high interest in telecommunication, electromagnetic and antennas. In this paper, we have used a photonic crystal periodic structure on the ground surface of the microstrip patch antenna. Simulation results show improvements in characteristics such as bandwidth, return loss, and antenna size by adding the photonic crystal in the antenna structure. 1760 Special Trajectory and velocity of electron in plasma wiggler Mahzabiyeh Raziyeh Bahadori Behnam Atomic and Molecular Department, Physics Faculty, Yazd University, Yazd, Iran Atomic and Molecular Department, Physics Faculty, Yazd University, Yazd, Iran 1 3 2019 25 ICOP & ICPET 2019 65 68 18 06 2019 18 06 2019 Complex plasma crystal is used as electrostatic wiggler in the free electron laser (FEL). Distances between grains are smaller relative to distances between usual magnets, so laser wavelength reduces with plasma wigglers. Trajectory and velocity of relativistic electron passing through the plasma crystal is obtained. The electron oscillates and increasing of the initial energy of injected electron leads to decreasing of amplitude of both trajectory and transverse velocity of the electron. 1761 Special Efficiency Enhancement in Thin Film Silicon Solar Cell Using the Plasmonic Properties of Metals Jafari Fatemeh Rakhshani Mohammad reza Mansoori birjandi Mohammad ali Faculty of Engineering, Hatef Higher Education Institute, Zahedan Faculty of Engineering, University of Zabol, Zabol Faculty of Electrical and Computer Engineering, University of Sistan and Baluchestan, Zahedan 1 3 2019 25 ICOP & ICPET 2019 69 72 18 06 2019 18 06 2019 In order to reduce the solar cell price, the active layer thickness has been decreased, but this reduces the absorption of light, especially at high wavelengths. One of the ways to increase the absorption and efficiency of solar cells is to use metal nanoparticles and to benefit from the effect of surface plasmon resonance. In this paper, we have tried to increase the absorption and efficiency of the solar cell by placing the silver nanoparticles on zinc oxide (ZnO) layer in a solar cell with an activate layer of amorphous silicon (a-Si). Also, compared to rectangular, triangular and semi-cylindrical arrays, it is shown that silver nanoparticles will increase the efficiency further. Finally, the basic parameters of the proposed solar cell are examined. 1762 Special Investigation of accuracy in characterization of rough surfaces by Fourier and Phase shifting techniques Rashidi Yazdan Mahdiyeh Mohammad hossein Jafarfard Mohammad reza Department of Physics, Iran University of Science and Technology, Narmak, Tehran, Iran Department of Physics, Iran University of Science and Technology, Narmak, Tehran, Iran Department of Physics, Iran University of Science and Technology, Narmak, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 73 76 18 06 2019 18 06 2019 In this paper, the measurement error of the Phase-shifting and Fast Fourier Transform (FFT) methods are obtained for different surface samples. According to the results, for surfaces in which the roughness changes are slow, FFT method is more accurate and for other roughness surfaces Phase-shifting technique is more appropriate. 1746 Special A label-free optical biosensor based on surface plasmon resonance Amoosoltani Narjes Farmani Ali Zarifkar Abbas School of Electrical and Computer Engineering, Shiraz University, Shiraz School of Electrical and Computer Engineering, Lorestan University, Khoramabad School of Electrical and Computer Engineering, Shiraz University, Shiraz 1 3 2019 25 ICOP & ICPET 2019 77 80 18 06 2019 18 06 2019 In this paper, a label free surface plasmon resonance optical biosensor is presented and analyzed.The ability of the proposed biosensor in identifying four biomaterials including methan, glycerol, acetic acid and ethyl salicylate is investigated. Simulation results show that the temperature changes do not have significant effect on the characteristics of the biosensor. 1653 Special Fabrication of a yellow ceramic pigment based on zirconium Silicate Hajializadeh Fariba Khajeh aminian Mohsen Shahsavari Fatemeh Vaselnia yoosof Motahari Hamid 1 3 2019 25 ICOP & ICPET 2019 81 84 18 05 2019 18 05 2019 In this paper, yellow ceramic pigmens were synthesized based on doping of antimony and chromium into the structure of  zirconium silicate using a solid state method with a combination of different methods. According to the XRD analysis both samples own three different compounds. SEM images show that the synthesized sample of the first method has an average particle size of 154 nano mater, and the second sample has an average particle size of 902 nano mater. The colorimetric anaiysis indicates that sampies are yellow. The b *  parameter for the samples is 50 and 36/14 respectively, which indicates they are yellow. 1770 Special Design and simulation of single broadband anti-reflection layer on silicon substrate by photonic crystals Hosseini zadeh Parisa Malekmohammad Mohammad Physics department, Science faculty, Isfahan University Physics department, Science faculty, Isfahan University 1 3 2019 25 ICOP & ICPET 2019 85 88 28 06 2019 28 06 2019 One of the effective methods to reduce the reflection is surface structuring (such as moth-eye structures). There are different techniques for designing structures, one of them is the use of the photonic crystals. In this way, a single anti-reflection layer can be designed with controllable structure. This layer reduces the reflection in both polarization, and large range of wavelength and incident angles. In this study, with the finite difference time domain (FDTD) method a single anti-reflection layer on silicon substrate by two-dimensional photonic crystals in a spectral range of 3-5 μm with an average reflection about 1% and transmission about 99% was simulated. This silicon anti-reflection layer is used in many optical and industrial systems, especially in the range of 3-5 μm. 1771 Special Design and modeling of an all-optical graphene modulator based on a polymer-coated optical fiber Nikdel oskooei Amin Soofi Hadi Baghban Hamed Kiani Gholamreza School of Engineering-Emerging Technologies, University of Tabriz, Tabriz, Iran School of Engineering-Emerging Technologies, University of Tabriz, Tabriz, Iran School of Engineering-Emerging Technologies, University of Tabriz, Tabriz, Iran School of Engineering-Emerging Technologies, University of Tabriz, Tabriz, Iran 1 3 2019 25 ICOP & ICPET 2019 89 92 28 06 2019 28 06 2019 All optical-modulator is a new generation of modulators designed in conjunction with electro-absorbing modulators to improve performance, increase speed and reduce the power of these modulators. Graphene has also been used for this kind of modulator because of its unique optical properties. In this paper, an all optical graphene modulator is modeled numerically and  the uniqe role of graphene has also been shown in this analysis. For the analysis , a single-mode optical fiber is considered and drawned from it’s two sides and narrowed, Then on the narrowed portion  a  graphene layer was coverd and the results are checked. Finally, a layer of polymer is also coverd on graphene and it’s Performance improvements is shown. In this research, the effect of fiber stretching on modulation depth and power consumption has been investigated. Reducing the radius of the narrowed section from 1 to 0.4 μm will significantly improve the depth of modulation and reduce power. Adding an extra polymer layer to graphene has reduced power consumption. 1772 Special Inactivation of Escherichia coli bacteria and water treatment using the air plasma with gliding arc discharge Marzdashti Fatemeh Nilkar Maryam Jafari Saed Ghafouri Hossein University of Guilan, Faculty of science University of Guilan, Faculty of science University of Guilan, Faculty of science University of Guilan, Faculty of science 1 3 2019 25 ICOP & ICPET 2019 93 96 28 06 2019 28 06 2019 The aim of this research gliding arch is to inactivate the Escherichia coli bacteria by the use of gliding arc plasma. For this purpose, 70 ml of LB media containing the Escherichia coli bacteria (each sample contains 10 ml) are treated in times of 0, 5, 10, 20,40, 60, and 90 seconds by using a1 kilowatt gliding arc plasma with distance of 6 cm from the surface of sample. The results showed that because of the high power of device, the inactivation time deceases to below than 10 seconds considerably compared with the other methods like the plasma jet and the dielectric barrier discharge and after this time, the variation of optical density becomes negligible. Furthermore, the pH of sample reduces by increasing the treatment time. The utilized system is more economical compared with the other systems because it doesn’t need to career gases such as helium, argon, and nitrogen to generate the plasma and operate by the air plasma. 1774 Special Microwave Photonic IFM Receiver with Tunable Measurement Range and Resolution Based on Intensity Modulator Chirp Parameter Ganjali Mohsen Hosseini Seyed esmaeil School of Electrical and Computer Engineering, Shiraz University, Shiraz, Iran School of Electrical and Computer Engineering, Shiraz University, Shiraz, Iran 1 3 2019 25 ICOP & ICPET 2019 97 100 28 06 2019 28 06 2019 In this paper, a novel scheme for measuring instantaneous frequency of a microwave signal based on microwave photonics technology is proposed and theoretically investigated. In the proposed structure, a microwave signal with its frequency to be measured is applied to two optical intensity modulators with adjustable chirp parameters and modulated on a continuous wave light. Then these two intensity modulated optical signals sent to two dispersive elements with different lengths and dispersion characteristics which leading to two different optical power penalties. There is a relationship between the ratio of the optical power penalties and microwave frequency. Therefore, by measuring the powers of the two signals at the output of the two photodetectors, the microwave frequency can be estimated. One of the main advantages of the proposed IFM is that its measurement range and resolution can be tuned by adjusting the chirp parameters of the two intensity modulators. 1779 Special Comparison of Hemoglobin Spectrum in Mechanical Optical Transparency of the Skin with the Spectrum of the Blood Sample Menshari Parisa Mohajerani Ezeddin Shirkavand Afshan Laser and Plasma Research Institute, Shahid Beheshti University Laser and Plasma Research Institute, Shahid Beheshti University Laser and Plasma Research Institute, Shahid Beheshti University 1 3 2019 25 ICOP & ICPET 2019 101 104 28 06 2019 28 06 2019 This research has been conducted with goal to hemoglobin spectroscopy with non-invasive skin diffuse reflectance spectroscopy in compare to blood sample spectroscopy. For this, five normal cases in similar physiological and testing condition, was included. Two reflectance spectra with and without clearing from distal finger was acquired and then blood samples was tested invasively and the blood sample spectra were tested in transmission optical spectroscopy. Analytical quantification was run and it was found that the optical absorption coefficient in both non-invasive skin spectroscopy and blood sample optical spectroscopy were approximately equal. This might be beneficial to substitute non-invasive methods instead of invasive blood tests. 1782 Special Simulation of a MSM Ultraviolet Photodetector Based on GaN Mohammadrezaei Mohammad Hatefi kargan Naser Department of Physics, Faculty of Basic Sciences, University of Sistan and Baluchestan Department of Physics, Faculty of Basic Sciences, University of Sistan and Baluchestan 1 3 2019 25 ICOP & ICPET 2019 105 108 28 06 2019 28 06 2019 Nowadays, numerical methods are widely used for the solution of problems due to the complexity of systems and geometries. Numerical computation is an effective tool for engineering semiconductor devices. In this research finite element method (FEM) has been used for simulation of a plasmonic MSM ultraviolet photodetector. For simulating the operation of this electronic device basic electromagnetic and semiconductor equations have been used. The results show that at a bias voltage of 10 V the dark current of the device is 5×10-12 A/cm2 and the photocurrent is 1.5×10-4 A/cm2. By using a plasmonic grid on the surface of the photodetector the photocurrent increased considerably, with a value of 1.5×10-4 A/cm2 at a bias voltage of 10 V while the variation on the dark current is negligible. 1783 Special Improving the efficiency of carbon quantum dot sensitized solar cells by doping of carbon quantum dots with nitrogen Hajimahani Elham Saheb Vahid Rooholamini nezhad Hossein saeed Marjan Faculty of Physics, Shahid Bahonar University, Kerman Department of Chemistry, Shahid Bahonar University, Kerman Faculty of Physics, Shahid Bahonar University, Kerman Faculty of Physics, Shahid Bahonar University, Kerman 1 3 2019 25 ICOP & ICPET 2019 109 112 28 06 2019 28 06 2019 Carbon quantum dots have recently emerged as alternatives to traditional semiconductor quantum dots because of their unique properties. Doping of carbon quantum dots with nitrogen can improve their properties. In order to investigate the effect of nitrogen doping on the performance of solar cells, first carbon quantum dots and nitrogen doped carbon quantum dots were synthesized then used to construct solar cells. It was determined that nitrogen doping has a positive effect on the solar cell efficiency. 1784 Special Laser wakefield generation by extra-ordinary wave (x-wave) with various frequencies in magnetized plasma Heydarzadeh Yeganeh Gholami rostam Zahra Moayyedi Hamed Akou Hossein Department of Physics, Faculty of Basic Science, Babol Noshirvani University of Technology, Babol, Iran Department of Physics, Faculty of Basic Science, Babol Noshirvani University of Technology, Babol, Iran Centre for Medical Radiation Physics, University of Wollongong, NSW 2522, Australia Department of Physics, Faculty of Basic Science, Babol Noshirvani University of Technology, Babol, Iran 1 3 2019 25 ICOP & ICPET 2019 113 116 28 06 2019 28 06 2019 In this paper, the propagation of extra-ordinary wave (elliptically polarized laser pulse) in a magnetized plasma and wakefield generation caused by it, is considered. According to the dispersion relation of extra-ordinary wave, the behavior and the group velocity variations of this wave, has been investigated in various conditions and by writing the governing equations, wakefield amplitude and also wakefield potential, in various laser and gyrofrequencies, has been studied. 1788 Special The fabrication of Quantum Dot based Light Emitting Diode Vahabzad Fereshte Rostami Ali Dowlatyari Mahboobeh Faculty of electrical and computer engineering, Tabriz university Faculty of electrical and computer engineering, Tabriz university ASPE Company 1 3 2019 25 ICOP & ICPET 2019 117 120 29 06 2019 29 06 2019 Recently, light emitting diodes based on quantum dots (QD-LED) are significantly appealing due to their unique features in optoelectronic fields. Narrow emission spectra, the simple synthesis methods, the high output light quality and the most importantly, the ability of controlling the wavelength of the emitting photon with the size of QDs, are some of the unique properties of these devices. In this study, presented structures are based on CdSe/ZnS and CdSe/ZnO QDs. The fabricated structures have the 2.5V turn-on voltage and the output light intensity of 59 lux/mm. Also the devices have the bandwidth of 8 MhZ that can be used in the visible light communication (VLC) to transfer the data. 1791 Special The Effect of THz Radiation in Superconductor Media Sheykh hosseinpour Ladan Hosseini Mahdi Bahadoran Mahdi Department of Physics, Shiraz University of Technology, Modares Blvd., Shiraz Department of Physics, Shiraz University of Technology, Modares Blvd., Shiraz Department of Physics, Shiraz University of Technology, Modares Blvd., Shiraz 1 3 2019 25 ICOP & ICPET 2019 121 124 29 06 2019 29 06 2019 In this paper, the effect of temperature on THz radiation in superconductors media is investigated. Electromagnetic equations for vortices have been solved and the radiated power versus superconductors parameters is calculated. Results show that radiated power is slightly dependent on temperature for those much lower than critical temperature (Tc), but an effect of temperature is significant near Tc. The results also reveal that the peak of radiated power gets its maximum just before Tc and then decreases sharply. 1794 Special Effect of Coupling Strength on the Light Behavior through a 3×3 Coupler Shafiei Ameneh Baradaran Mahdi Hatami Mohsen Department of Physics, Shiraz University of Technology, 31371555, Shiraz, Fars, Iran Department of Physics, Shiraz University of Technology, 31371555, Shiraz, Fars, Iran Department of Physics, Shiraz University of Technology, 31371555, Shiraz, Fars, Iran 1 3 2019 25 ICOP & ICPET 2019 125 128 29 06 2019 29 06 2019 We theoretically study the transmission characteristics of 3 × 3 optical coupler including a waveguide and two ring resonators using coupled mode theory. Our analytical approach is suitable for either linearly distributed couplers or circularly symmetric distributed coupler. Effect of coupling strength on the transmittance of a 3×3 coupler is investigated in detail. Based on optical transfer function of a 3×3 coupler, we show that the optical transmittance versus wavelength can be calibrated based on the coupling strengths of side couplers. 1795 Special The effect of Atmospheric pressure Non-Thermal plasma on treatment of NOx pollutant Nazari Homa Jafari Saed Abedi varaki Mahdi Department of Physics, Faculty of Sciences, University of Guilan, Rasht Department of Physics, Faculty of Sciences, University of Guilan, Rasht Department of Physics, Faculty of Sciences, University of Guilan, Rasht 1 3 2019 25 ICOP & ICPET 2019 129 132 29 06 2019 29 06 2019 In this paper a theoretical study on NOx removal by non-thermal plasma technology specifically a dielectric barrier discharge, is presented. The one-dimensional model showed a reduction of NO2 concentration and increase in electron concentration as a function of time. Air pollutants such as oxides of nitrogen are commonly found in areas where vehicles and factories using fossil fuels are operating. 1700 Special Effect of Interaction Geometry on the Stimulated Brillouin Scattering Jaberi Mohammad Jamshidi Pegah Nazari golshan Akbar Plasma and Nuclear Fusion Research Institute, Nuclear Science and Technology Research Institute, Tehran, Iran Department of Physics, Shahed University, Tehran, Iran Department of Physics, Shahed University, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 133 136 08 06 2019 08 06 2019 In this paper, the effect of changes in the interaction geometry on the stimulated Brillouin Scattering process in a single-cell setup to achieve the optimized configuration is studied. The energy reflectivity variations of the phase conjugate mirror and energy stability in optical limiting of SBS cell have been investigated. Our results show that the energy reflectivity of phase conjugation mirror can be optimized and the output energy of the SBS cell as a SBS- optical limiter can be controlled by changing the interaction geometry. 1708 Special Electric Field Effect on Electronic Structure and Optical Properties of Hemispherical Quantum Dot with Wetting Layer Dezhkam Masoomeh Department of Physics, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran 1 3 2019 25 ICOP & ICPET 2019 137 140 11 06 2019 11 06 2019 In this paper a hemispherical quantum dot-wetting layer under an external electric field has been considered. The electronic structure of the system has been calculated numerically by finite element method. The wetting layer has been accounted because of its effect on electronic structure. Results show that applying the electric field changes the energy levels of the system and the ground, first and second excited state energies decrease by increasing the electric field. To investigate the optical properties, two strong control and weak probe laser fields have been applied to the system and the linear and third-order nonlinear absorptions and dispersions of the probe pulse have been obtained. According to results the linear and third-order nonlinear absorptions and dispersions of the probe pulse exhibit blue shifts as the electric field increases. 1655 Special Introducing a new high-performance, polarization insensitive graphene-based modulator Najafi Hajivar Mohammad Hosseini- Farzad Mahmood Department of Physics, College of Science, Shiraz University Department of Physics, College of Science, Shiraz University 1 3 2019 25 ICOP & ICPET 2019 141 144 07 06 2019 07 06 2019 In this paper, a new structure is proposed in order to eliminate the sensitivity of the graphene modulators to the incident light polarization. This structure consists of a square cross section buried waveguide. Each vertical wall of the waveguide is covered by a graphene layer and there are two graphene layers underneath the waveguide. Different polarization modes have the same interaction with graphene layers and so the modulator performance is almost the same for both modes. The simulation results for modulation depth of TE and TM modes and their differences, as a function of waveguide’s dimension are presented, also, loss of the structure for two modes (which can be considered as a part of the insertion loss of the modulator) with respect to dimensions is investigated. Also, the average modulation depth and also average loss are also studied. The results show that the proposed structure demonstrate a remarkable polarization independent graphene-based modulator. 1660 Special Point Spread Function reconstruction of an optical microscope using large object imaging Chartab jabbari Mahdieh Baradaran ghasemi Amir hossein Latifi Hamid Department of Physics, Shahid Beheshti University, Tehran, Iran Department of Physics, Shahid Beheshti University, Tehran, Iran Department of Physics, Shahid Beheshti University, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 145 148 07 06 2019 07 06 2019 In this paper, by using expectation–maximization for maximum likelihood estimation algorithm and by using spherical beads with two different sizes, the point spread function (PSF) is calculated in two different optical setups. The purpose of this experiment is to investigate the possibility of PSF reconstruction in an optical microscope through very large objects compared to that of the diffraction limit in the optical systems. We show that the PSF of an optical microscope can be estimated even through objects with size at least two times larger than the diffraction limit and with a noisy image. 1694 Special Reducing the effect of thermal distribution on the second harmonic generation efficiency inside a MgO:PPLN crystal using a design of crystal with continuously variable period Amrollahi Hamid Arabanian Atoosa sadat Masoudi Reza Laser and Plasma Research Institute, Shahid Beheshti University, Tehran Laser and Plasma Research Institute, Shahid Beheshti University, Tehran Laser and Plasma Research Institute, Shahid Beheshti University, Tehran 1 3 2019 25 ICOP & ICPET 2019 149 152 07 06 2019 07 06 2019 In this paper, by solving coupled equations of nonlinear propagation of waves and heat equation, the effects of thermal distribution and also the effects of Gaussian profiles on the second harmonic generation efficiency by continuous laser with a wavelength of 1064 nm inside a periodically poled quasi phase-mached MgO:PPLN crystal has been investigated and it has been proved that for the incident powers above 10 watts, the asymmetric thermal distributions along the crystal will result a phase mismatching and a significant reduction in the second harmonic efficiency. The proposed method for increasing the second harmonic efficiency and reducing the thermal distribution effect is the use of the continuously varying period along the crystal so that which by this method one can minimize the effect of thermal distribution and enhance the second harmonic efficiency is close to the value that the effects of thermal distribution has been discarded. 1701 Special Changes in the backward stokes pulse compression in Stimulated Brillouin Scattering by the presence of Ag nanoparticles Jaberi Mohammad Davoodi Seyedeh molood Nazari golshan Akbar Jafari milani Mohammad reza Plasma and Nuclear Fusion Research Institute, Nuclear Science and Technology Research Institute, Tehran, Iran Department of Physics, Shahed University, Tehran, Iran Department of Physics, Shahed University, Tehran, Iran Plasma and Nuclear Fusion Research Institute, Nuclear Science and Technology Research Institute, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 153 156 08 06 2019 08 06 2019 In this paper, the effect of the presence of Ag nanoparticles in an organic medium on stimulated Brillouin scattering stokes pulse duration and pulse compression has been investigated experimentally. Presence of the nanoparticles in the scattering medium can be resulted in stimulated Mie-Bragg scattering and changes in the Brillouin scattering response of the medium. The results show that the backward stokes pulse duration decreases and pulse compression increases by increasing the concentration of Ag nanoparticles. Also, pulse compression can be controlled by changing the nanoparticles concentration.   1714 Special Investigation of Gelatine Using Surface-Enhanced Raman Spectroscopy (SERS) Sharifi Nafiseh Eskandari Vahid Laser and photonic group, Department Physics, University of Kashan, Kashan Nanoscience and nanotechnology re1search center, University of Kashan, Kashan 1 3 2019 25 ICOP & ICPET 2019 157 160 13 06 2019 13 06 2019 In this study, silver nanoparticles were synthesized using a chemical method with a reducing agent of sucrose at a temperature of 50°C. Subsequently, the silver nanoparticles were deposited on glass substrates using drop-coating to build active SERS substrates. Different analyses including UV-Vis spectroscopy (UV-Vis), X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM) and energy-dispersive X-ray spectroscopy (EDS) were obtained to investigate the characterizations of silver nanoparticles. Since silvery substrates could enhance the Raman signal of molecules, these silvery substrates were used to investigate the molecular and biological detection. The active SERS substrates were obtained to detect 10-2 M of gelatine. In this paper, by carving gelatine in 10-2 M on silvery substrates by a physical method. The silver nanoparticles plasmonic resonance cause of an increase of SERS intensity. In compare with FT-IR spectrum, SERS substrates is an easy way to obtain gelatine. 1717 Special Graphene based multiband THz electro-optic modulator Jafari Behnam Soofi Hadi Vahed Hamid Shoghi Ali akbar School of Engineering- Emerging Technologies, University of Tabriz, Tabriz 5166616471, Iran School of Engineering- Emerging Technologies, University of Tabriz, Tabriz 5166616471, Iran School of Engineering- Emerging Technologies, University of Tabriz, Tabriz 5166616471, Iran School of Engineering- Emerging Technologies, University of Tabriz, Tabriz 5166616471, Iran 1 3 2019 25 ICOP & ICPET 2019 161 164 13 06 2019 13 06 2019 In this article a multiband electro-optic modulator based on single layer graphene is designed and numerically investigated. The designed modulator incorporates metallic Nano-antennas to enhance the absorption and hence the modulator parameters. Due to integrating graphene into a metal-dielectric-graphene (MDG) sandwich structure, highly confined graphene plasmons (GPs) are excited in the MDG structure and multiple order Fabry-Perot (FP) resonances are formed by interference of oppositely propagating GPs waves that account for the multiband absorption enhancement. The applied bias voltage shifts the transmission spectra which in turn shifts the maximum transmission through the structure. At 31.7mm, the modulation depth is as high as 18dB. Unlike other graphene-based modulators that modulation is based on changes in graphene absorption, in this case modulation is based on frequency shifting of FP resonances. 1730 Special Designing and Simulation of the Optical System of the Star Tracker Sensor, Using the ZEMAX Software Arian fard Hamed Ghamat Hamed Raeisi Behrooz Space Sensor Group, Institute of Mechanics Iranian Space Research Center Space Sensor Group, Institute of Mechanics Iranian Space Research Center Space Sensor Group, Institute of Mechanics Iranian Space Research Center 1 3 2019 25 ICOP & ICPET 2019 165 168 16 06 2019 16 06 2019 optical system is an important part of star tracker technology, the number of optical components used must be minimized to facilitate processing and assembly, while maintaining efficiency. Additionally, the mass and volume of the star tracker can be reduced by reducing the axial and radial dimensions of the optical system. In this paper, following the use of Star nano-sensor optical systems such as ST-16 (manufactured by Sinclair Interplanetary) and selected CMOS active pixel image sensor (MT9P031 model), the desired optical system, is designed, simulated and optimized. 1753 Special Investigation of ultrashort laser induced damage threshold in metal oxide coatings Rahimi Mahdi Jahangiri Fazel Masoudi Reza Laser and Plasma Research Institute, Shahid Beheshti University Laser and Plasma Research Institute, Shahid Beheshti University Laser and Plasma Research Institute, Shahid Beheshti University 1 3 2019 25 ICOP & ICPET 2019 169 172 18 06 2019 18 06 2019 In this paper, the laser damage threshold induced by interaction of single ultrashort pulse with optical coatings including metal oxides of ZrO2, Al2O3, Sc2O3 and SiO2 is calculated. Simulation results using the rate equations and taking into consideration the avalanche and multiphoton ionization reveal that the laser fluence of damage threshold increases with increasing pulse duration.   1781 Special Investigating and Calculating of Silicon Displacement defect due to irradiation on Photodiodes Using Carrier Lifetime Changes Shoorian Sara Jafari Hamid Feghhi Seyed amirhossein Radiation Application Department, Shahid Beheshti University, Tehran, IRAN Radiation Application Department, Shahid Beheshti University, Tehran, IRAN Radiation Application Department, Shahid Beheshti University, Tehran, IRAN 1 3 2019 25 ICOP & ICPET 2019 173 176 28 06 2019 28 06 2019 Photodiodes as the base structure of many optical components may be exposed to ionizing radiation. In this paper, the effect of PKAs with different energies ( 50 eV, 100 eV and 200 eV, 500 eV and 1000 eV) have been investigated on a silicon photodiode. PKAs microscopic effects on the silicon structure, which cause  Frenkel defects formation and the creation of new energy levels in the semiconductor band gap,  The device’s macroscopic changes due to the trapping of charge carriers in the created traps, lead to the reduction of the photodiode cathode current and, consequently, the quantum efficiency, which is simulated and calculated by SILVACO. This affects the reliability of the data obtained from these components, which should be considered when designing the circuits and analyzing the results. 1793 Special Optical sensor based on plasmon induced transparency in metamaterial graphene Ghera'ati Abdol rasool Izadshenas jahromi Jamal 1 3 2019 25 ICOP & ICPET 2019 177 180 29 06 2019 29 06 2019 In this work, considers the numerical solution of a metamaterials structure consisting of graphene in which two graphene bars are on a dielectric. Actually, the destructive interaction occurred in this structure between the two bright-dark plasmonic modes leads to stimulated transparence in spectral responses. In fact, observe induced transparency by symmetry breaking in structure. Furthermore, controls the scope of this clear aperture by changing the graphene input voltage and changes in the chemical doping of graphene covered the far infrared range. So, in two ways, resonance range controls which are that symmetry breaking in structure and chemical potential. Reduce of group velocity is order of 361.3 and sensitivity of this structure calculated as 20 um/RIU. Results show that graphene metamaterials may offer new possibilities for applications in optical switches, light slowing and biosensors. 1798 Special Geometric phase of a two-level atom near a dissipative and dispersive nano-sphere Mohammadi abdehvand Somayeh Amooghorban Ehsun Mahdifar Ali 1 3 2019 25 ICOP & ICPET 2019 181 184 29 06 2019 29 06 2019 In this paper, we study the geometric phase of a two-level atom near a dissipative nano-sphere. For this purpose, by applying the Von-Neumann equation, we obtain the reduced density operator of the atomic system in the Markov and the rotating-wave approximations. Then, by specifying the eigenvalues and the eigenvectors of the reduced density operator, the Lamb shift and transition rates in terms of the Green tensor of system are obtained. Finally, by calculating the Green tensor of system and making use of the kinematic approach, the geometric phase is calculated. We observe that the geometric phase near the excitation frequency of the polariton-phonons in the sphere will be drastically changed. 1832 Special Thermal coherent states associated with Lie groups: Nonclassical properties Zehtabzadeh Fataneh Faghihi Mohammadjavad Baghshahi Hamidreza Department of Photonics, Faculty of New Science & Technology, Graduate University of Advanced Technology, Mahan, Kerman Department of Photonics, Faculty of New Science & Technology, Graduate University of Advanced Technology, Mahan, Kerman Department of Physics, Faculty of Science, Vali-e-Asr University of Rafsanjan, Rafsanjan 1 3 2019 25 ICOP & ICPET 2019 185 188 30 06 2019 30 06 2019 Thermal coherent states are important classes of radiation fields composed of standard coherent state and thermal state. In nonlinear treatment, annihilation and creation operators are replaced by their nonlinear counterparts. In this paper, after introducing thermal coherent states corresponding to  and  Lie groups, their nonclassical properties are studied. 1842 Special Design and Operation of a Laser Induce Fluorescence-Based Spectral Imaging System to Investigate and Diagnose of Cancerous Breast Tissue Omidi Zahra Khodabakhshi Zahra Bassam Mohammad amin Movahed Morteza Sajad Batool Physics Department, Alzahra University Physics Department, Shahrood University Electronics Department, Malek Ashtar University Baqiyat allah University of medical sciences Physics Department, Alzahra University 1 3 2019 25 ICOP & ICPET 2019 189 192 30 06 2019 30 06 2019 In this study, a Laser induced Fluorescence spectral imaging (LIF-SI) point-scanning based system is designed to achieve spectral images of cancerous and healthy breast tissues. The spectral imaging combines spectroscopy and imaging science. The Spectrum at each point of sample collected in the X and Y directions to process and get a picture. Any pixel at the gray-scale image contains spectrum of a definite point on the sample that is collected by a linear CCD array. 1843 Special Chaotic Dynamics in a Nonlinear Ring Resonator with Different Propagation Constants Tohidinia Zahra Bahadoran Mahdi Hosseinabadi Shahrzad Pakarzadeh Hasan Department of Physics, Shiraz University of Technology, Shiraz, Iran. Department of Physics, Shiraz University of Technology, Shiraz, Iran. Department of Physics, Shiraz University of Technology, Shiraz, Iran. Department of Physics, Shiraz University of Technology, Shiraz, Iran. 1 3 2019 25 ICOP & ICPET 2019 193 196 30 06 2019 30 06 2019 A transfer function for a 2×2 optical coupler which connecting two different waveguides is derived. The simulated results were compared analytically and numerically. The coupler was then used in a ring resonator and the effects of nonlinear refractive index in the output filed were investigated. The results show that by choosing different waveguide materials bistability can be obtained with less input power. Moreover, for the same input power, the output power from system with identical waveguides is much less than that of from different waveguide.  1846 Special Ultra short attosecond pulse generation in the presence of static field Fattahi Maryam sadat Rahimi Shahab Hossein zadeh Forough Batebi Saeed Department of Physics, University of Guilan Department of Physics, University of Guilan Department of Physics, University of Guilan Department of Physics, University of Guilan 1 3 2019 25 ICOP & ICPET 2019 197 200 30 06 2019 30 06 2019 In order to generate attosecond pulse, we’ve solved the time dependent Schrodinger equation in 1 dimensional case for Hydrogen atom. Thus, by calculating the Fourier transformation of the induced dipole acceleration, we’ve depicted the high harmonics spectra for both one color and two color laser fields with and without the presence of a static field. We’ve also compared generated attosecond pulses by superposing some of the harmonics for the above two cases. As a result, the generated pulse for the monochromatic field, which was 158 attosecond wide, shortens to 105 attosecond in the presence of a static field. in bichromatic laser field case, a 66 attosecond pulse is generated. In presence of a static field, its width shrinks to 52 attosecond. 1855 Special Crystal morphology effect on optical properties of halide Perovskite thin films Bazire Sirous Yazdani Elnaz Moshaei Ahmad Hosseini Mandana sadat Departmentof physics, Tarbiat Modares University, Tehran-Iran Departmentof physics, Tarbiat Modares University, Tehran-Iran Departmentof physics, Tarbiat Modares University, Tehran-Iran Departmentof physics, Tarbiat Modares University, Tehran-Iran 1 3 2019 25 ICOP & ICPET 2019 201 204 02 07 2019 02 07 2019 The halide Perovskite absorber layer due to their direct band gap and proper optical properties such as high absorption coefficient in the visible domain are an attractive material for optoelectronics applications. They can be used, as an active medium in light emission diodes and semiconductor lasers. In this paper, the optical properties of halide perovskite thin films by altering the ratio of the employed precursors and the changingof the synthesized crystals morphology has been investigated experimentally. Finally, the optical amplification possibility in synthesized films versus to the crystal size and structure have been explained. 1859 Special Intensity-based Opto-Pair Fiber Angular Displacement Sensor Salemi Fatemeh Talebzadeh Mohammad davood Hakimifard Alireza Department of Basic Sciences, Jundi-Shapur University of Technology, Dezful, Iran. Department of Basic Sciences, Jundi-Shapur University of Technology, Dezful, Iran. Department of Basic Sciences, Jundi-Shapur University of Technology, Dezful, Iran. 1 3 2019 25 ICOP & ICPET 2019 205 208 02 07 2019 02 07 2019 In this study, sensors are used based on intensity measurements. These sensors have cheaper components, are simply fabricated and have a much higher bandwidth. The study focuses on two-fiber sensors as transmitter and receiver fibers, with a reflective target, also two fibers have angular displacement flexibility relative to the reflector. In this research, we tried to calculate numerically the output and the input powers, and the amount of the overlap area between sending and receiving fibers, then some optimal states are recognized. In intensity-based angular fiber optic displacement sensors, various factors affect the sensitivity. After simulating the sensor and checking these factors, it was found that by decreasing the diameter of the transmitter fiber, the receiver output power is increased, also the sensing range increases. By decreasing the core diameter of the sending fiber, the dead band region of the sensor is decreased. When the receiver core diameter increases, the power output of the receiver fiber increases, and the dead band region decreases. 1862 Special Dynamic Simulation of Temperature Distribution in Depth of a Metallic Target Irradiated by a Pulsed Laser Nazaralizadeh Mahdi Moradi Farshad Sari Amirhossein Department of Physics, Science and Research Branch, Islamic Azad University, Tehran, Iran Department of Physics, Science and Research Branch, Islamic Azad University, Tehran, Iran Department of Physics, Science and Research Branch, Islamic Azad University, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 209 212 02 07 2019 02 07 2019 In this paper, the temperature distribution in the depth of Cu target after pulsed laser impact has been simulated. This calculation was done by taking the latent melting heat into account. The specific heat capacity, thermal conductivity and density were taken as temperature dependent. The simulation performed mode is a condition in which the thermo-physical properties such as thermal conductivity material are temperature dependent and specific heat capacity at constant pressure, in the new initiative, a mixture of specific heat capacity depends on temperature and latent melting heat is considered. The effect of different laser powers at various impact time are considered and calculated. 1864 Special Nonlinear Optical Properties Measurement for Solution of‌ Chlorophyll Rezaei Mahdieh Shahshahani Fatemeh Shafikhani Azizollah Department of Physics, Alzahra University, Tehran Department of Physics, Alzahra University, Tehran Department of Physics, Alzahra University, Tehran 1 3 2019 25 ICOP & ICPET 2019 213 216 02 07 2019 02 07 2019 In this paper nonlinear absorption coefficient and nonlinear refractive index of samples with different concentration of chlorophyll measured with Z-scan technique by using second harmonic of continuous wave Nd:YAG laser at the wavelength of 532 nm. The value of nonlinear refractive index and nonlinear absorption coefficient are obtained in the order of 10-8 cm2 /watt and 10-3 cm/watt, respectively. 1881 Special Synthesis and investigation of optical properties of Molybdenum Disulfide quantum dots via hydrothermal method Mostafavi meresht Fereshte Saeivar iranizad Esmaeil Bayat Amir Department of physics, Tarbiat Modares University, Tehran, Islamic Republic of Iran Department of physics, Tarbiat Modares University, Tehran, Islamic Republic of Iran Department of physics, Tarbiat Modares University, Tehran, Islamic Republic of Iran 1 3 2019 25 ICOP & ICPET 2019 217 220 02 07 2019 02 07 2019 In this study, stable and water-soluble quantum dots of Molybdenum Disulfide were synthesized via a simple bottom-up hydrothermal method by Sodium Molybdate and L-cysteine precursors. The synthesized quantum dots were investigated using the X-Ray diffraction, absorption spectrum, emission spectrum, and atomic force microscopy. Based on photoluminescence spectra, it was shown that the quantum confinement leads to an increase in the band gap of molybdenum disulfide from 1.3 eV for bulk to 3.5 eV for quantum dots.  According to the analysis results, the size of these nanocrystals was obtained on average less than 10 nm. The produced quantum dots exhibit blue emission under ultraviolet irradiation. These quantum dots show high intensity and stable fluorescence. 1898 Special Simulation and Analysis the properties sensing of plasmonic switch in ring resonators Khaki Maryam Aray Ayda Saghafifar Hossein 1 3 2019 25 ICOP & ICPET 2019 221 224 05 07 2019 05 07 2019 In this paper the simulation of a two-dimensional nanoscale Structure of Plasmonic switch in ring resonators which consist of two Metal-Insulator-Metal (MIM) waveguides coupled to each other by a ring resonator is proposed. In This structure we use silver for substrate and the differential refractive index dielectric for waveguides and ring resonator. The length of each waveguide is 595nanometers and their distance between ring is 10nanometer and finally radius of ring consider of 195nanomaters.The variation of several resonance modes in the transmission spectrum study with variations of ring radius and refractive index. The transmission properties are numerically simulated by finite element method (FEM) and COMSOL Multiphysic software. 1904 Special Methelen Blue degredation by optical properties and photocatalytic activity of Ba- doped Manganite Esmaeili baghabrishami Shadi Ehsuni Mohammad hossein Department of Physics, University of Semnan Department of Physics, University of Semnan 1 3 2019 25 ICOP & ICPET 2019 225 228 05 07 2019 05 07 2019 Nanoparticles La0.7Ba0.3MnO3 (LBMO) were prepared by microwave radiation. The physical properties of these nanoparticles were studied by conventional methods. The results showed that the specimens were grown in rhombohedral and crystallized in nanometer scale. Optical properties of nanoparticles were studied by a visible light spectrophotometer. Absorption analysis results showed that this compound has a band gap in the visible light range (2.41 eV). Also, the study of the photocatalytic properties of samples prepared for methylene decolorization showed that this compound could be a suitable material for the removal of this persistent pollutant in industrial effluents. 1905 Special Prevention of Stroke in Rats Using Optogenetic Technique Baloochi Andisheh Bigdeli Mohammad reza Dargahi Layla Nazari Seyed mirhossein Ghorbani Ahmad Chavoshinezhad Sara Latifi Hamid Zibaei Mohammad esmaeil Shahid Beheshti University, Tehran Shahid Beheshti University, Tehran Shahid Beheshti University, Tehran Shahid Beheshti University, Tehran Shahid Beheshti University, Tehran Shahid Beheshti University, Tehran Shahid Beheshti University, Tehran Shahid Beheshti University, Tehran 1 3 2019 25 ICOP & ICPET 2019 229 232 05 07 2019 05 07 2019 Brain Stroke is one of the most dangerous diseases of the nervous system. This complication is the second leading cause of death in the world. Different methods have been suggested for the treatment of this disease. In this study, we study the preventive effects of optogenetics stimulation in the animal model of ischemic stroke. For this purpose, by injection of Channelrhodopsin (CHR) opsin, implantation of optical fibers and laser blue light irradiation in the rat striatum, glutamateuric neurons were stimulated. Obtained results show optical stimulation leads to increasing of neurogenesis in the SVZ region and thereby reducing the infract volume after induction of ischemic stroke. 1906 Special Optical properties of CdS thin films doped with Fe Yousefpour novini Nasim Tohidi Tavakkol Jamshidi ghale Kazem Taghavi Mahdi Department of Physics, Azarbaijan Shahid Madani University, Tabriz, Iran. Northwest Research Complex, Radiation Application Research School, NSTRI, Bonab, Iran Department of Physics, Azarbaijan Shahid Madani University, Tabriz, Iran. Northwest Research Complex, Radiation Application Research School, NSTRI, Bonab, Iran 1 3 2019 25 ICOP & ICPET 2019 233 236 05 07 2019 05 07 2019 In this work, Fe-doped CdS nanostructured thin films have been deposited on glass substrates successfully by the chemical bath deposition method using cadmium chloride, thiourea, iron(II) chloride and ammonia. The effect of different iron concentrations on morphological and optical properties of CdS thin films has been investigated. Optical properties including absorption coefficient, band gap, photoluminescence, refractive index and extinction coefficient of the samples were investigated. 1907 Special Investigation of image resolution in different angles by using two-dimensional Graded Photonic Crystals with elliptical Cross-Section and negative index Ghara'ati Abdol rasool Fathi Nameh Department of Physics, Payame Noor University,Tehran, Iran. Department of Physics, Payame Noor University,Tehran, Iran. 1 3 2019 25 ICOP & ICPET 2019 237 240 05 07 2019 05 07 2019 In this paper, we use two dimensional graded photonic crystal consisting of square lattice with elliptical cross-section for designing negative effective index structures. The propagation of electric and magnetic fields is calculated by the finite-difference time-domain method. For calculation of photonic band structure and equal frequency contours we have used plan wave expansion method. According to the results, change angles of elements with elliptical Cross-Section have significant impact on the resolution. 1908 Special Investigating the propagation of vortex beams in the presence of an opaque obstacle Hosseini saber Seyed mohammad ali Rezaei Samira Saber Ahad Ahadi akhlaghi Ehsan Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran Department of Science, University of Mohaghegh Ardabili, Ardabil, 56199-11367, Iran Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran 1 3 2019 25 ICOP & ICPET 2019 241 244 05 07 2019 05 07 2019 In this article, the propagation of vortex beams in the presence of an opaque obstacle is investigated. The intensity distribution of the diffracted beam due to the edge of the opaque obstacle is simulated using the angular spectrum and Huygens convolution propagation methods. It has been shown that the vortex beams have a relative self-healing property so that the diffracted intensity distribution of these beams are healed asymmetrically through propagation. This phenomenon occurs for a larger topological charge at shorter propagation distances. It has also been shown that the direction of self-healing is related to the topological charge sign, and therefore the use of the diffraction pattern from the edge of the opaque obstacle is a simple and fast way to determine the topological charge sign. 1910 Special A plasmonic isolator with graphene waveguide based on multimode interference Heydari Mohsen Ahmadi Vahid Janjan Babak Faculty of Electrical and Computer Engineering, Tarbiat Modares University, Tehran, Iran Faculty of Electrical and Computer Engineering, Tarbiat Modares University, Tehran, Iran Faculty of Electrical and Computer Engineering, Tarbiat Modares University, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 245 248 05 07 2019 05 07 2019 In this paper, we investigate the multimode interference of a dielectric-loaded graphene waveguide. By utilizing a magneto-optic substrate and the multimode interference phenomenon, we design a very compact plasmonic isolator, based on finite element method (FEM) simulation. The isolator structure consists of three sections, single-mode/multimode/single-mode waveguides.  The magneto-optic substrate leads to a non-reciprocal property in the structure. Therefore, the forward and backward propagating waves experience different propagation constants, which leads to an optical isolation of about 11.13 dB. 1913 Special Nonlinear Optical Investigation of Cu/rGO Using Z-Scan Technique Karimi Mohammad reza Mohajer mazandarani Salman Majlesara Mohammad hossein Photonic lab, Departmebt of physics, Kharazmi University, Tehran, Iran Photonic lab, Departmebt of physics, Kharazmi University, Tehran, Iran Photonic lab, Departmebt of physics, Kharazmi University, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 249 252 05 07 2019 05 07 2019 A simple optical method to measure the nonlinear refractive index of reduced Graphene Oxide doped Cu (Cu/rGO) is released in this research. Samples prepared in three different concentrations. In a simple optical setup by using simple optical relation samples refraction calculated in 532 nm wavelength that supportad by Nd;YAG laser. Results show that the nonlinear refraction of samples in this wavelength increases due to increasing of concentration. 1918 Special The effect of immersion temperature in two step deposition method on morphology of perovskite and performance of perovskite solar cell Keyvani hafashjani Farideh Borhani zarandi Mahmood Behjat Abbas Jahanbakhshizadeh Naser Sharifi ardani Mahdi Photonics Research Group, Engineering Research Center, Yazd University, Yazd, Iran Photonics Research Group, Engineering Research Center, Yazd University, Yazd, Iran Photonics Research Group, Engineering Research Center, Yazd University, Yazd, Iran Photonics Research Group, Engineering Research Center, Yazd University, Yazd, Iran Photonics Research Group, Engineering Research Center, Yazd University, Yazd, Iran 1 3 2019 25 ICOP & ICPET 2019 253 256 06 07 2019 06 07 2019 Organic-inorganic perovskite CH3NH3PbI3 due to their particular properties such as high diffusion lengths of charge carriers, tunable band-gap and easy construction method, use as absorbing layer in perovskite solar cells. Morphology of perovskite layer which has a direct impact on performance of solar cell, influenced by various parameters, including the conditions of deposition of perovskite layer. In this paper perovskite layer created by two step method and the effect of the immersion temperature variation on the morphology of the perovskite layer as well as the performance of perovskite solar cell investigated. Characterization of constructed solar cells showed that the immersion temperature has a significant effect on performance of perovskite solar cells. Also, constructed solar cell by immersion temperature of 25 °C has a better performance than other temperatures (0 and 50 °C). 1919 Special Measurement of non-linear refractive index of Standard N719 in Acetonitrile solution Raji Samaneh Haddad Mohammad ali Dehghanipour Masoud Department of Physics, Yazd University, Yazd, Iran, PO Box 89195-741. Department of Physics, Yazd University, Yazd, Iran, PO Box 89195-741. Department of Physics, Yazd University, Yazd, Iran, PO Box 89195-741. 1 3 2019 25 ICOP & ICPET 2019 257 260 06 07 2019 06 07 2019 Standard N719 dye is well known dye in synthesis of SDDC solar cells. This dye is frequently used for fabrication and characterizing of a laboratorial SDDC solar cells. In this paper non–linear refractive index of standard N719 dye is measured by using z-scan technique. Different deduced values have been compared in different concentrations of N719 in Acetonitrile solution. 1920 Special Organic –Inorgainc Hybrid Perovskite Device as an X-ray Detector Mohammadpourfard Amin Ahmadi Vahid Arabpour roghabadi Farzaneh Optoelectronic and Nanophotonic Research Group, Faculty of Electrical and Computer Engineering, Tarbiat Modares University, Tehran, Iran. Optoelectronic and Nanophotonic Research Group, Faculty of Electrical and Computer Engineering, Tarbiat Modares University, Tehran, Iran. Optoelectronic and Nanophotonic Research Group, Faculty of Electrical and Computer Engineering, Tarbiat Modares University, Tehran, Iran. 1 3 2019 25 ICOP & ICPET 2019 261 264 06 07 2019 06 07 2019 X-ray detectors made from crystalline silicon or amorphous are widely used in medical diagnosis. However, this technology does not have acceptable sensitivity for medical purposes due to the high cost of the fabrication. The large charge carrier mobilitiy and charge carrier lifetimes of hybrid perovskite materials and the presence of  Pb  in the compound as a high atomic number element make them promising candidates for X-ray detection. In this paper, we demonstrate the development of X-ray detectors with an active area of methylammonium lead iodide (CH3NH3PbI3) and polymeric layer of electron and hole transporting layer. The performance of device was measured under 3 KeV x-ray radiation that showed a current in the range of nano ampere. 1921 Special Beam profile study and optimization in polygonal and circular Multipass absorption cell Ashofteh ardakani Pedram Haddad Mohammad ali Department of Physics, Yazd University, Yazd, Iran. PO Box 89195-74 Department of Physics, Yazd University, Yazd, Iran. PO Box 89195-74 1 3 2019 25 ICOP & ICPET 2019 265 268 06 07 2019 06 07 2019 Laser -based absorption spectroscopy is an elegant method for identifying and detection of molecular gases in different environments. Utilizing various Multipass cells provides longer absorption length (absorption depth) and consequently improves the sensitivity of this method. In this article we present ray tracing simulations for beam profile optimization and the optical design of three polygons and circular Multipass reflection cells. It is found the polygon geometry has its own significant advantages compared to other geometries. 1922 Special Designing gold nanoparticles to exploit their plasmonic characteristics in photo-thermal therapy Golmohammadi Saeid Bahmani Farzam Soofi Hadi Tabriz University, faculty of emerging technologies Tabriz University, faculty of emerging technologies Tabriz University, faculty of emerging technologies 1 3 2019 25 ICOP & ICPET 2019 269 272 06 07 2019 06 07 2019 photo-thermal phenomena, which is defined as heat generated in nanostructures by a given spectrum of light, has drawn a large attention to itself, especially in medical researches. In this study, we considered a gold diabolo structure as reference, and then developed new structures in order to improve their electrical and magnetic fields, generated by a plane-wave source, and also to reduce the scattered power in these structures and Al2O3 substrate By these intentions we managed to confine the absorbed power (at the plasmonic wavelength), and to increase the power per unit volume as large as one order of magnitude (10 times as reference). This leads to an increase in the total power absorption from 0.2 normalized in the reference, to 0.45 normalized in the latter structure. We observed an acceptable reduction in scattering power within bipyramid structures and an increase in electric and magnetic fields in other structures as well. 1925 Special The effect of gold nanoparticles on the linear and nonlinear behavior of malignant breast cancer of mda-mb-231 cell line Mousavifard Seyedeh saba Khaksar jalali Bahareh Salmani shik Somayeh Majlesara Mohammad hossein Nabiuni Mohammad Photonic lab, Department of Physics, Kharazmi University, Karaj, Iran Photonic lab, Department of Physics, Kharazmi University, Karaj, Iran Photonic lab, Department of Physics, Kharazmi University, Karaj, Iran Photonic lab, Department of Physics, Kharazmi University, Karaj, Iran Department of Cell and Molecular, Faculty of Biological Scinces, Kharazmi University, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 273 276 06 07 2019 06 07 2019 In this paper, the linear and nonlinear optical characteristics of human breast cells of the mda-mb-231 cell line, have been investigated. At first, the cells were treated by three different concentrations with spherical gold nanoparticles, then they were placed in a Z-Scan Setup. The results showed that their linear absorption and nonlinear refractive index increased in the presence of gold nanoparticles. 1927 Special Classical entanglement of spatial-radial degrees of freedom of a light beam as a resource of quantum teleportation in weak atmospheric turbulence Alipour Sanaz Afshar Davood Sabaeian Mohammad Department of Physics, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz Department of Physics, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz Department of Physics, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz 1 3 2019 25 ICOP & ICPET 2019 277 280 06 07 2019 06 07 2019 Classical entanglement between radial and orbital angular momentum degrees of freedom of a light beam is investigated as a resource of free space quantum communications in a weak atmospheric turbulence. It is observed that as the atmospheric turbulence rises, the entanglement loss would be higher. However, the greater orbital angular momentum, the greater resistance of the entangled state would be against atmospheric turbulence destructive effects. Thus, entangled states with higher orbital angular momentum are better resources for implementation of free space quantum communications 1789 Special Investigate on effect of annealing temperature of perovskite layer deposited by two step method on performance of perovskite solar cells Sharifi ardani Mahdi Borhani zarandi Mahmood Jahanbakhshi zadeh Naser kaivani hafshejani Farideh Amrollahi biooki Hojjat Atomic and Molecular Group, Faculty of Physics, Yazd University, Yazd, Iran Atomic and Molecular Group, Faculty of Physics, Yazd University, Yazd, Iran Atomic and Molecular Group, Faculty of Physics, Yazd University, Yazd, Iran Atomic and Molecular Group, Faculty of Physics, Yazd University, Yazd, Iran Atomic and Molecular Group, Faculty of Physics, Yazd University, Yazd, Iran 1 3 2019 25 ICOP & ICPET 2019 281 284 29 06 2019 29 06 2019 Among the third generation solar cells, perovskite cells have attracted a lot of attention due to their high efficiency and low cost construction methods. Amongst the factors affecting the performance of these types of solar cells is the morphology of perovskite layer. One of the factors influencing the morphology of perovskite layer and ultimately the performance of the perovskite solar cell is the annealing temperature of the absorbing layer in this type of solar cell. In this paper, the effect of annealing temperature variation of the perovskite layer created by two step method on morphology of perovskite layer and performance of the perovskite solar cell investigated. It has been determined that the created perovskite at annealing temperature of 70 ° C has a morphology with a more uniform surface and the resulting solar cell has a better performance (Eff.=5.99%) than the other annealing temperatures (Eff.=4.46, 5.02 and 1.22% for T=50, 90 and 120 °C). 1874 Special Dynamic Light Scattering Measurement of Nanoparticles in Liquids Amiri roshkhar Mohammad amin Tavassoli Seyed hasan Laser and Plasma Research Institute, Shahid Beheshti University, Velenjak, Tehran, Iran Laser and Plasma Research Institute, Shahid Beheshti University, Velenjak, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 285 288 02 07 2019 02 07 2019 Dynamic light scattering is one of the most commonly used methods for determining the size distribution of nanoparticles in liquids. In this method, the particle diameter is calculated by monitoring the time fluctuations in the intensity of the scattered light from the nanoparticles. In this paper, the experimental setup of the dynamic light scattering method using a 532 nm laser and a PMT detector has been installed and the practical results of this setup for samples of silver nanoparticles are presented. The size distribution histogram obtained from this experiment has been compared with the results of a standard laboratory device, which indicates an excellent match. 1875 Special Annealing temperature effect of CuSCN in performance of the perovskite solar cells as an inorganic hole transporting layer Koohian afzal dehkordi Maedeh Ahmadi Vahid Arabpour roghabadi Farzaneh Abdollahi nazhand Bahram Optoelectronic and Nanophotonic Research Group, Faculty of Electrical and Computer Optoelectronic and Nanophotonic Research Group, Faculty of Electrical and Computer Optoelectronic and Nanophotonic Research Group, Faculty of Electrical and Computer Optoelectronic and Nanophotonic Research Group, Faculty of Electrical and Computer 1 3 2019 25 ICOP & ICPET 2019 289 292 02 07 2019 02 07 2019 One of the main components in the structure of solar cells is the hole transporting layer that plays an important role in extracting the carriers. These materials are divided into two main categories including organic and inorganic materials. In this work, CuSCN is used as the hole transporting (HTL) layer and the effect of the annealing treatment on crystallinity and surface morphology of this layer was investigated. The perovskite solar cells based on an inorganic CuSCN HTL which were annealed at different temperatures were fabricated and characterized. It is shown that the prepared sample which is annealed at 120°c presents the best surface morphology as well as better photovoltaic characteristics. 1880 Special Reflection coefficients from a Weyl semimetal for an oblique incidence Latifi Ali Adami Safa Soltani Morteza Ghanbari adivi Ebrahim Department of Physics, Faculty of sciences, University of Isfahan, Isfahan, Iran Department of Physics, Faculty of sciences, University of Isfahan, Isfahan, Iran Department of Physics, Faculty of sciences, University of Isfahan, Isfahan, Iran Department of Physics, Faculty of sciences, University of Isfahan, Isfahan, Iran 1 3 2019 25 ICOP & ICPET 2019 293 296 02 07 2019 02 07 2019 In this research, at first, the electromagnetic response of a topological Weyl semimetal has been investigated in the bulk by using the modified Maxwell equations and then, Reflection coefficients in the scattering of light from the Weyl semimetal for oblique incidence is obtained by applying the boundary conditions. The geometry here is a semi-infinite slab of Weyl material in which the direction of Weyl nodes is along the z-axis and the reflecting surface is aligned with the y-z plane. Finally, the results are checked by comparing them with the previous results of normal incidence in the same geometry. 1883 Special Zemax Simulation of Integral Imaging Microscope for Optimzation of Microlens Parameters Hashemi dastjerdi Davood Moradi Alireza Department of Physics‎,‎Institute for Advanced Studies in Basic Sciences (IASBS)‎, 45137-66731, Zanjan‎, Department of Physics‎,‎Institute for Advanced Studies in Basic Sciences (IASBS)‎, 45137-66731, Zanjan‎, 1 3 2019 25 ICOP & ICPET 2019 297 300 03 07 2019 03 07 2019 In this paper we simulate integral imaging microscope by ZEMAX. Integral image of an arbitrary sample is formed by the use of a pre-designed microlens array and by the use of a depth estimation algorithm the 3D image along with intensity distribution of the sample is reconstructed. Then, adjusting the system parameters virtually the optimum configuration for the integral imaging microscopy system is investigated. The possibility for virtual lab design, according to high expenses of microlens arrays is significant. 1884 Special Investigation of Excitation and Active Control of Plasmonic Waves in Graphene Ghezelsefloo Masoud Moravvej farshi Mohammad kazem Darbari Sara Faculty of Electrical and Computer Engineering, Tarbiat Modares University, Tehran 1411713116, Iran Faculty of Electrical and Computer Engineering, Tarbiat Modares University, Tehran 1411713116, Iran Faculty of Electrical and Computer Engineering, Tarbiat Modares University, Tehran 1411713116, Iran 1 3 2019 25 ICOP & ICPET 2019 301 304 03 07 2019 03 07 2019 In this paper, we propose an active device for excitation of plasmonic waves in graphene. In the proposed structure, highly confined plasmonic waves in graphene are excited using a Germanium based grating. Sharp dips on the normal-incidence transmission spectra at the resonance wavelength confirms excitation of graphene surface plasmons. This structure can be uses as a highly tunable optical filter or as a broadband modulator, because the resonant wavelength can be tuned over a wide wavelength range by a small change in the Fermi energy level of the graphene. 1888 Special Simulation Refractive Index Dual Core Fiber Optic Sensor Based on Mach-Zehnder Interferometer Akbari Faezeh Seyednazari Mirhossein Latifi Hamid Zibaei Mohammad esmaeil Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 305 308 03 07 2019 03 07 2019 In this article a dual-core fiber optic sensor based on mach-zehnder interferometer for measurement refractive index changing is simulated. In this structure one of the cores is doped with germanium and the other with phosphorus. They operate as interferometer arms. Since the length of both arms are equal, interference pattern is formed by the refractive index difference of cores. One of the cores is considered as reference arm and the evanescent field of the other core interacts with surrounding environment. The interference pattern shifts with changing the refractive index of the surrounding environment. The sensor sensitivity is greatly dependent on evanescent field penetration into the external medium which can be increased by chemical etching or side polishing of fiber cladding. Simulation results show that the maximum achieved sensitivity is 643.85 nm/RIU which could be used for fiber optic biosensors.  1889 Special Enhancing the Absorption and Spectral Width of Graphene Near the Nanoplasmonic Crystal Based on Semicircular Metallic Grating Yektaparast Banafsheh Shirkani Hossein Department of Physics, Persian Gulf University, Bushehr Department of Physics, Persian Gulf University, Bushehr 1 3 2019 25 ICOP & ICPET 2019 309 312 03 07 2019 03 07 2019 In this paper, graphene has been used in combination with a nanoplasmonic crystal made of semicircular metallic grating, in order to creation surface plasmons. We study graphene absorption under the influence of plasmonic resonances according to geometric parameters and dielectric refractive index. The use of this structure increased the absorption of graphene up to 28.7% in the near infrared region and the spread of absorption spectrum in the visible and throughout the near infrared regions that this amount of absorption and spectral region are controlled by grating material, dielectric refractive index and geometric parameters. 1896 Special Flourescence Enhancement by an Asymmetric Nanoshell Samimi Khadijeh Firoozi Aida Mohammadi Ahmad Boushehr, Parsian gulf university, Department of physics Boushehr, Parsian gulf university, Department of physics Boushehr, Parsian gulf university, Department of physics 1 3 2019 25 ICOP & ICPET 2019 313 316 04 07 2019 04 07 2019 By employing the finite difference time domain method, we study the fluorescence enhancement of molecules coupled to an asymmetric plasmonic nanoshell. This kind of nanoparticles can considerably enhance flourescence rate. For this purpose, we consider a nanoshell consisting of a silica core and a golden shell. It is shown that, with proper selection of core dimension, core material, core displacement, molecular distance and direction the fluorescence rate can be considerably increased. 1897 Special Investigation of the contribution of radiative and non-radiative decay in the spontaneous emission of a quantum emitter close to a plasmonic nanoparticle Namvar Haniyeh Siahpoosh Vahid Shojaei Saeed Research Institute for Applied Physics and Astronomy-University of Tabriz Research Institute for Applied Physics and Astronomy-University of Tabriz Research Institute for Applied Physics and Astronomy-University of Tabriz 1 3 2019 25 ICOP & ICPET 2019 317 320 05 07 2019 05 07 2019 The use of plasmonic nanoparticles is one of the effective methods for controlling the spontaneous emission of a quantum emitter. In this paper, a plasmonic nanoparticle has been used to investigate the contribution of radiative and non-radiative decay in the spontaneous emission of the quantum emitter. To this end, a quantum emitter has been considered in the vicinity of a silver nanoparticle and by using the coupled dipole approximation method, spontaneous emission, contribution of radiative and non-radiative decay variations of the quantum emitter, in terms of wavelength and distance from the nanoparticle, have been investigated. The obtained results show that with the increase in the nanoparticle diameter and reduction in the spacing of the nanoparticle from the quantum emitter, the maximum spontaneous emission and contribution of radiative decay are increased. 1900 Special Measurement of the Stark broadening parameter of atomic species by laser-induced breakdown spectroscopy Akbari veshnave'e Elham Shoursheini Seyedeh zahra Shirvani mahdavi Hamidreza Physics-Chemistry faculty, Alzahra University, Tehran Physics-Chemistry faculty, Alzahra University, Tehran Department of physics, Islamic Azad University Central Tehran Branch, Tehran 1 3 2019 25 ICOP & ICPET 2019 321 324 05 07 2019 05 07 2019 One of the main problems in laser-induced breakdown spectroscopy is self-absorption effect of emission spectral lines. To correct this effect, various solutions are proposed; in many of which knowing the amount of collision parameter, as the most important quantity, is essential in the Stark broadening of each line. In the present research work, collision parameter of the spectral line 393.36 nm related to once-ionized calcium (Ca II), for the first time, is determined using laser plasma spectroscopy and also other spectral lines of the species.  1931 Special Numerical simulation of Kerr lens mode-locked Ti: sapphire oscillator in non-soliton regime Shahbazi Hossein Najafi Somayeh Masoudi Reza Laser and Plasma research institute, shahid beheshti university Laser and Plasma research institute, shahid beheshti university Laser and Plasma research institute, shahid beheshti university 1 3 2019 25 ICOP & ICPET 2019 325 328 06 07 2019 06 07 2019 In this paper, the numerical simulation results of Kerr lens mode-locked Ti: sapphire oscillator are reported. We investigated the effect of the different parameters such as crystal length, titanium doping and radius of curve of the mirrors of laser oscillator on the characterizations of output ultra-short laser pulses and introduced optimized values of these parameters. It is found that for the amounts of doping 0.15% and crystal length less than 8mm, it is possible to generate the ultra-short pulses with duration of less than 20fs and energy of more than 19nJ. 1804 Special The effect of cleaning substrate on laser induced damage threshold of antireflection coating at 1064nm Heydari fard Ali Mardiha Mahdi Fallah Hamidreza Haji mahmoodzadeh Morteza Department of Physics, University of Isfahan Department of Physics, University of Isfahan Department of Physics, University of Isfahan Department of Physics, University of Isfahan 1 3 2019 25 ICOP & ICPET 2019 329 332 29 06 2019 29 06 2019 Optical anti reflection thin-film are widely used in the photonic industry, these layers are used in optical window, lenses and other optical elements. They are also used in beam expander and other optical elements that used to focus laser beam. But the rise in laser energy causes the damage of these types of coatings. In this paper, we have tried to find an optimal method using three different methods of cleaning, which would increase the threshold of laser damage to these coatings. 1808 Special Investigation and Modelling of Optical Voltage Sensor Based on LiNbO3 Crystal in Two Different cutting Directions Amiri Hesam Sedighi banaei Sakineh Zibaei Mohammad esmaeil Yavari Neda Instrumentation Department, Niroo Research Institute, Dadman St, Tehran, Iran Instrumentation Department, Niroo Research Institute, Dadman St, Tehran, Iran Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran Instrumentation Department, Niroo Research Institute, Dadman St, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 333 336 29 06 2019 29 06 2019 A fiber-optic voltage sensor based on the transverse Pockels effect in the x and z cut LiNbO3 crystals where the optical path was parallel to z and y axis, respectively, is defined and the outstanding temperature stability of within 0℃ to 100℃ is investigated in two directions. The simulated comparison between the temperature sensitivity of the sensor based on the Pockels effect in x-cut LiNbO3 bulk crystal with optical path parallel to z-axis is less than the y propagated, z-cut LiNbO3 crystal where the temperature variation of the transfer function in this temperature range is fractional, linear and in the order of 10-4. However, in the z-cut crystal Pockels cell the output of the sensor is sinusoidal and in the order of 1. Therefore, the use of a fiber-optic voltage sensor based on z propagated, x-cut LiNbO3 crystal demonstrates temperature stability of ±0.01% from 0℃ to 100℃ compared with the y propagated, z-cut bulk LiNbO3 crystal. 1809 Special Provide an appropriate temperature compensation solution for optical voltage sensors based on LiNbO3 crystal Amiri Hesam Yavari Neda Zibaei Mohammad esmaeil Amini Babak Instrumentation Department, Niroo Research Institute, Dadman St, Tehran, Iran Instrumentation Department, Niroo Research Institute, Dadman St, Tehran, Iran Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran Instrumentation Department, Niroo Research Institute, Dadman St, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 337 340 29 06 2019 29 06 2019 In this paper, an efficient method is proposed for the temperature compensation of optical voltage sensors. In this method, the x-cut LiNbO3 bulk crystal with optical path parallel to z-axis with two orthogonal output signals is used. By using the two output signals and the compensation algorithm, the effect of the temperature and laser intensity was eliminated, and the electric field intensity parameter was measured with high accuracy and the mean error reduced by %1.3. This method has been successfully implemented in order to solve the temperature challenge in optical transformer, designed and constructed by the Niroo Research Institute (NRI), were successfully implemented after passing the industrial tests and ensuring their reliability. 1813 Special Electro-optical properties of polymer field nanocomposite based Polymethyl Methacrylate Baghshahi Mozhgan Borhani zarandi Mahmood Amrollahi bioki Hojjat Department of Physics, Yazd University, Yazd, Iran Department of Physics, Yazd University, Yazd, Iran Department of Physics, tarbiat modarres University, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 341 344 29 06 2019 29 06 2019 In this paper nanocomposite of polymethyl methacrylate-polyaniline-Tin sulphide was synthesized by chemical routes and goal of this research is Optimize pure nanocomposite of  polymethyl methacrylate in order to use in  Photovoltaic systems. Electro-optical, structure and morphology characteristics of nanocomposites were identified by scanning electron microscope (SEM), X-Ray diffraction (XRD) and Spectroscopy of the visible area (UV-Vis). 1814 Special Improvement of Transmission in the Optical Switch based on Plasmonic Waveguide Molaee Barjahri Mahsa Purmahyabadi Maryam Optoelectronic Laboratory, Electrical Engineering Department, Shahid Bahonar University Optoelectronic Laboratory, Electrical Engineering Department, Shahid Bahonar University 1 3 2019 25 ICOP & ICPET 2019 345 348 29 06 2019 29 06 2019 In this paper, a plasmonic switch based on MIM waveguide coupled with a resonator is presented that has switching function and controls the Fano profile. The proposed structure is simulated and analyzed using the FDTD method. The results revealed that in the absence of a baffle (the silver band in the waveguide), the transmission spectrum shows a depth at the wavelength of 1100nm, while in the presence of the baffle, due to the interaction between the baffle and the resonator, the structure transmission spectrum shows a sharp Fano profile, which confirms the switching function of this structure. This sharply created profile can be controlled by changing the structure parameters. This structure has the potential for application as a nanosensor, slow-light devices, etc. in integrated optical circuits. 1816 Special Design of Narrow band absorber as a plasmonic gas sensor Salari Fatemeh Pourmahyabadi Maryam Optoelectronic Laboratory,Faculty Of Electrical Engineering, Shahid Bahonar University of kerman Optoelectronic Laboratory,Faculty Of Electrical Engineering, Shahid Bahonar University of kerman 1 3 2019 25 ICOP & ICPET 2019 349 352 29 06 2019 29 06 2019 In this paper, a narrowband plasmonic absorber based on a metal-dielectric-metal-dielectric-metal periodic structure is proposed and numerically investigated, which consists of aluminium nanobar periodic array on a thin aluminium film separated by a dielectric layer. The absorber works at near-infrared region and can be operated as a refractive index sensor with a high sensitivity of around 2300 nm/RIU, a narrow absorption bandwidth (FWHM) of 20nm and the absorption peak of 86 % at normal incidence. Thus, the FOM of the proposed plasmonic sensor can be reached 115RIU-1. By adjusting the structure parameters, the optimized absorption peak can be achieved. 1824 Special Nonclassical properties of nonlinear excited squeezed Kerr states Farzan Mohammad ehsun Faghihi Mohammad javad Honarasa Gholamreza Department of Photonics, Faculty of New Science & Technology, Graduate University of Advanced Technology, Mahan, Kerman Department of Photonics, Faculty of New Science & Technology, Graduate University of Advanced Technology, Mahan, Kerman Department of Physics, Shiraz University of Technology, Shiraz 1 3 2019 25 ICOP & ICPET 2019 353 356 30 06 2019 30 06 2019 In this paper, by making use of the algebraic treatment to nonlinear coherent states, new classes of  radiation states, based on excitation of squeezed Kerr states, are introduced. To examine the nonclassical properties of the states obtained, Mandel parameter as well as squeezing is studied. The numerical results show that increasing the order of excitation is able to enhance the nonclassical behavior of the system. 1848 Special Fabrication of gold coated tapered tip optical fiber for investigation of its application in optogenetics Alhassaani Esra Koochakzadeh Seyedeh Fatemeh Roohalamini nezhad Hossein Faculty of Physics, Shahid Bahonar University, Kerman, Iran Faculty of Physics, Shahid Bahonar University, Kerman, Iran Faculty of Physics, Shahid Bahonar University, Kerman, Iran 1 3 2019 25 ICOP & ICPET 2019 357 360 30 06 2019 30 06 2019 Using noninvasive or least invasive neuro stimulation (preventing the tissue damage) in topical and intensive lighting of the different parts of brain is a main challenge in optogenetics. By designing gold coated tapered tip optical fiber using chemical etching (important points about this method in fabrication of tapered tip fiber are: concentration of acid, temperature and pressure), it will be possible to send the light in a more localized manner to the target area. Surface Plasmon resonance can enhance potential reaction of neuron. It will be possible to stimulate different parts of brain by coupling laser light to the optical fiber. 1851 Special Analysis and Simulation of a silicon Mach-Zehnder modulator at telecommunication wavelength Mirzaei Mohammad sadegh Zarandi Mohammad hossein Mashayekhi Hamidreza Department of physics, Shahid Bahonar University, Kerman, Iran Department of physics, Shahid Bahonar University, Kerman, Iran Department of physics, Shahid Bahonar University, Kerman, Iran 1 3 2019 25 ICOP & ICPET 2019 361 364 02 07 2019 02 07 2019 In this paper, a silicon Mach-Zehnder modulator based on carrier depletion in a lateral PN junction is simulated to optimize its performance at 1310nm telecommunication wavelength. The modulation efficiency 1.55V.cm and phase shifter loss 1.89dB/cm in 2V bias are achieved. Here, the power consumption of the modulator 1.08pJ/bit is estimated. The measured extinction ratio is also obtained for the 50Gb/s data rate under a 2.3Vpp drive voltage. This results are comparable with the demonstrated modulators at 1555nm wavelength.  1863 Special Transmittance properties of Terahertz waves in the photonic crystals containing semiconductor with thermal effect Baseri Ali Keshavarz Alireza Physics Department, Shiraz University of Technology Physics Department, Shiraz University of Technology 1 3 2019 25 ICOP & ICPET 2019 365 368 02 07 2019 02 07 2019 Today, the one-dimensional quasi-photonic crystals, are extensively paid attention because of their capabilities in controlling and modulating the transmitted waves. In this investigation, by choosing the layers with the quasi-periodic arrangement of maximum length sequence and containing semiconductor, which is sensitive to the temperature in Terahertz range, tunability of the photonic bandgaps and transmittance spectrum are evaluated. Besides such media can be used as Terahertz filters and mirrors, they could also contain too narrow and desired transmittance peaks. 1867 Special Tunable plasmonic induced transparency and sensor properties in a graphene structure Ghafari Sana Foroozesh fard Mohammad reza Vafapour Zohre Department of Physics, Faculty of Science, Vali-e-Asr University, Rafsanjan, Iran Department of Physics, Faculty of Science, Vali-e-Asr University, Rafsanjan, Iran Department of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, Maryland 21218, USA 1 3 2019 25 ICOP & ICPET 2019 369 372 02 07 2019 02 07 2019 plasmonic inducedtransparency in a graphene structure composed of cut-out H-shape as well as two parallel pair antennas in a graphene layer is investigated. It is shown that breaking symmetry is a necessary condition to have PIT effect in the structure. In this situation, the dark mode antenna coupled with the near field of the bright mode and the PIT effect is created. The PIT frequencycan be tuned with changing chemical potential of the graphene. Application of the structure as a refractive index sensor is also analyzed and the value of is obtained for water sensitivity. 1871 Special Increasing the nonlinear refractive index of polystyrene polymer by adding titanium dioxide nanoparticles Rashidian vaziri Mohammad reza Zeynali Masoomeh Zhaleh Babak Omidvar Afshan Abbasi Amir Photonics and Quantum Technologies Research School, Nuclear Science and Technology Research Institute, Tehran Department of Physics, Bu-Ali Sina University, Hamedan Department of Physics, Bu-Ali Sina University, Hamedan Department of Physics, Bu-Ali Sina University, Hamedan Photonics and Quantum Technologies Research School, Nuclear Science and Technology Research Institute, Tehran 1 3 2019 25 ICOP & ICPET 2019 373 376 02 07 2019 02 07 2019 In this paper, a solution of polystyrene and titanium dioxide nanoparticles (TiO2) with different concentrations of nanoparticles is prepared and then is coated by spin coating method on the surface of quartz substrates. The structural properties of the layers were investigated using scanning and transmission electron microscopes. The thickness of the layers is measured using a profilometer. The nonlinear refractive index of the layers is also measured using the closed aperture z-scan method. The results of this work indicate increase of the nonlinear refractive index of polymer with adding TiO2 nanoparticles. It is found that increase of the nonlinear refractive index is proportional to the percentage of the added TiO2 nanoparticles to the polystyrene polymer. 1872 Special Computational Study of Transmission and Reflection in an Elliptical Waveguide Jandaghi Hamid Rezvani jalal Masoud Abdikian Alireza Department of Physics and Photonics, Malayer University, Malayer Department of Physics and Photonics, Malayer University, Malayer Department of Physics and Photonics, Malayer University, Malayer 1 3 2019 25 ICOP & ICPET 2019 377 380 02 07 2019 02 07 2019 In this paper, reflection and transmission from a body placed within a cylindrical waveguide with elliptical cross-section and conducting wall is computationally studied. First, the electromagnetic waves guidable in the waveguide are numerically obtained. Then, a dielectric body of refractive index n and thickness L which is co-section with the waveguide is inserted into it and its reflection as well as transmission coefficients are computed. It is shown that the highest reflection occurs near the cutoff frequency of the waveguide but in frequencies much larger than it, the body behaves as a Fabry-Perot resonator in an unbounded space and its reflection and transmission coefficients change periodically and resonantly with frequency. 1873 Special Simulation of Superposition of Holography Films for Addition of New Images Madaeni Seyed arash Rezvani jalal Masoud Pishdast Masoud Department of Physics and Photonics, Malayer University, Malayer Department of Physics and Photonics, Malayer University, Malayer Plasma Physics and Fusion Research School, Nuclear Science and Technology Research Institute 1 3 2019 25 ICOP & ICPET 2019 381 384 02 07 2019 02 07 2019 In this paper the method of addition of new images to a saved hologram is studied theoretically and by simulation. To do this task the light waves emitted from all the objects present in the imaging scene at the position of holographic film is considered. Investigation of the total wave shows that in order to add a new image to the desired hologram, holographic image of the new object with all individual objects in the previous film should be first obtained separately. Given these holograms and putting them over the old one, image of the new object can be inserted among the previous images. 1891 Special Design of 4-channel optical demultiplexer based on photonic crystal nano-ring resonator Delfi Gholamali Oliaei Saeed Seifouri Mahmood Mohebzadeh bahabady Ahmad Faculty of Electrical, Shahid Rajaee Teacher Training University, Tehran, Iran Faculty of Electrical, Shahid Rajaee Teacher Training University, Tehran, Iran Faculty of Electrical, Shahid Rajaee Teacher Training University, Tehran, Iran Faculty of Electrical, Shahid Rajaee Teacher Training University, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 385 388 03 07 2019 03 07 2019 In this paper, 4-channel optical demultiplexer has been designed based on photonic crystal nano-ring resonator. The structure of demultiplexers is based on the use of a photonic crystal filter. The advantages of the designed 4-channel include the mean quality factor of 4525, mean channel power transfer factor of 95%, and maximum and minimum channel cross-talk of -19.6 and -40.4, respectively. Also, the simulation results reveal that the inter-channel difference is 7.8 nm and mean channel width is 0.375 nm. 1892 Special Design and Simulation of Hydrogen Gas Non-adiabatic Tapered Optical Fiber Sensor Riahi Ali Dastjerdi Vahid Vahedi Mohammad Khalilzadeh Javad Shahamat Yadollah Physics department, Iran University of Science and Technology, Tehran, Iran Physics department, Iran University of Science and Technology, Tehran, Iran Physics department, Iran University of Science and Technology, Tehran, Iran Optics and Laser Research Center, Imam Hossein University of Technology, Tehran, Iran Physics department, Iran University of Science and Technology, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 389 392 03 07 2019 03 07 2019 In this paper, we report simulation of a gas sensor based on tapered optical fiber in the presence of different hydrogen concentrations. It is shown that by increasing the percentage of the hydrogen gas in the surrounding medium, we can see the shift of the interference pattern. The Beam Propagation Method (BPM) is used to simulate the fibers. The fiber parameters used for simulations are those of the laboratory prepared fibers. The fiber is a commercial optical fiber (with 125μm cladding and 9μm core) that is tapered to different diameters at different angles. The input wavelength is 1550 nm. Results demonstrate good agreement with experimental results. The sensitivity of the sensor increases by increasing the taper angle and reducing the taper diameter. The obtained sensitivity makes hydrogen detection below 4% easy and accurate. 1894 Special Generating a bi-annular utilizing coherent superposition of two radially shifted zones Sobatian Arash Seyfi Fatemeh The Physics Department, Faculty of Sciences, Urmia University The Physics Department, Faculty of Sciences, Urmia University 1 3 2019 25 ICOP & ICPET 2019 393 396 04 07 2019 04 07 2019 In this paper, by coherent superposition of two positive and negative radially phase shifted zone plates a novel diffractive element is achieved. It is demonstrated that the element can turn an incident plane wave into a bi-annular optical beam under. In addition, having two manageable axial foci is the other important feature of the element, . As a result this element is able to generate a bottle beam. Finally, the results of the theoretical and experimental works are shown to be well consistent. 1691 Special Tracking a Magnetic Target by Atomic Magnetometer Soheilian Asieh Ranjbaran Maliheh Tehranchi Mohammad mahdi Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 397 400 07 06 2019 07 06 2019 Tracking a magnetic target is a primary concern in clinical applications, military and transportation. We have studied the application of atomic magnetometers for magnetic tracking. These magnetometers could measure the magnetic field and its gradient simultaneously. Here, to trace a moving magnetic object by an atomic magnetometer, we used ferromagnetic micro-wires with different lengths and velocities. Our results showed that the variation in length of micro-wire could change the signal intensity. But, increasing in velocity has no influence on the signal intensity.   1695 Special Generation of electrical tunable Annular beam in the cell of dye doped liquid crystal Behjat Zahra Panahi Farzaneh Khoshsima Habib Sobatian Arash Research Institute for Applied Physics & Astronomy, University of Tabriz, Tabriz Research Institute for Applied Physics & Astronomy, University of Tabriz, Tabriz Research Institute for Applied Physics & Astronomy, University of Tabriz, Tabriz Department of Physics, Science Faculty, University of Urmia, Urmia 1 3 2019 25 ICOP & ICPET 2019 401 404 08 06 2019 08 06 2019 In this paper we report a novel way for generating tunable Annular beam. The method is based on recording the printed pattern of Radial shifted Fresnel zone plate (RSP FZP) on the cell of 1294-1b liquid crystal doped with dye. Varying the radius of annular beam or being tunable with the external electrical field, supply interesting application for our sample both in bio photonics and in industry. Moreover, simplicity in creating electrical tunable annular beam is another interesting feature of this technique. 1710 Special Coupled Mode Coefficient Determination in High Power Fiber Amplifiers Sepahvand Amir Karimi Maryam Shohani Azin Jamshidi ghale Kazem Amniat talab Mahdi Department of Physics, Azarbaijan Shahid Madani University, West Azarbaijan, Tabriz, Iran Institute of Nuclear Science and Technology, AEOI, Tehran, Iran Department of Physics, Urmia University, 11km SERO Road, Urmia, Iran Department of Physics, Azarbaijan Shahid Madani University, West Azarbaijan, Tabriz, Iran Department of Physics, Urmia University, 11km SERO Road, Urmia, Iran 1 3 2019 25 ICOP & ICPET 2019 405 408 11 06 2019 11 06 2019 Double-clad fibers are used to generate the power up to kilowatts at fiber amplifiers and lasers. Different factors, such as the nonlinear effects and the mode instability effect on the output of the fiber amplifiers and lasers. Mode instability is known as the largest limiting factor on them. The main reason for the mode instability is the energy transfer from the fundamental mode  to the first higher order mode . Therefore, the relationship between modes and coupling of them is very important in the high power fiber amplifiers.  The first step in the calculation of the mode instability is the coupling constant specification and the factors effect on it. In this paper, the effect of core size on the coupling constant value was studied and the effect of waveguide parameter on the maximum value of coupling constant was verified. It was shown that for the fibers with the similar waveguide number; the value of coupling constant is independent on the wavelength. 1711 Special Heat Effect on the Power Conversion of the Modes in the Ytterbium-Doped Fiber Amplifiers Shohani Azin Sepahvand Amir karimi Maryam Amniat-talab Mahdi Jamshidi ghale Kazem Department of Physics, Urmia University, 11km SERO Road, Urmia, Iran Department of Physics, Azarbaijan Shahid Madani University, West Azarbaijan, Tabriz, Iran Institute of Nuclear Science and Technology, AEOI, Tehran, Iran Department of Physics, Urmia University, 11km SERO Road, Urmia, Iran Department of Physics, Azarbaijan Shahid Madani University, West Azarbaijan, Tabriz, Iran 1 3 2019 25 ICOP & ICPET 2019 409 412 13 06 2019 13 06 2019 High power fiber lasers and amplifiers have many applications in the military industries; high energy physics experiments; surface processing and smoothing; cutting, and welding.  In the high power fiber amplifiers; due to the existence of quantum defects, background loss and scattering of light, the ambient temperature increases; which cause to change the refractive index of the environment. The variation of the refractive index causes to mode coupling in the high power fiber lasers and amplifiers. In the present paper; the modes coupled equations are solved using Ronge-Kutta method and transferred power value between modes are determined. 1721 Special The effects of different solvent ratios on the morphology and performance of CH3NH3Pb‌I‌3 based perovskite solar cells yazdi Ebrahim Behjat Abbas Valipour Farzaneh Torabi Naeimeh Photonics Research Group, Yazd University, Yazd, Iran Photonics Research Group, Yazd University, Yazd, Iran Photonics Research Group, Yazd University, Yazd, Iran Photonics Research Group, Yazd University, Yazd, Iran 1 3 2019 25 ICOP & ICPET 2019 413 416 16 06 2019 16 06 2019 To achieve a pinhole-free and perovskite film with high crystalline use the Lewis acid–base adduct method is one of the viable way to regulate perovskite crystal growth. The solvents used to make the solution of perovskite directly affect the morphology and efficiency of the perovskite solar cells. In this study different ratio of DMSO-DMF were applied to fabricate solar cells. The suitable ratio of DMSO/DMF is reported as ¼. Contrary to previous reports, it was shown that the ratio of 1/9 for DMSO/DMF is more suitable base on the experimental data. 1674 Special Simulation and Comparison of a diffuse ceramic cavity with Reflective elliptical cavity in the Flash Lamp pumped Nd: YAG Laser Salehi nezamabadi Javad Maleki Abbas Kavosh tehrani Masoud Ebadian Hasan Shahin Shahr, Malek Ashtar University of Technology, Optics and Laser Science and Technology Research Center Shahin Shahr, Malek Ashtar University of Technology, Optics and Laser Science and Technology Research Center Shahin Shahr, Malek Ashtar University of Technology, Optics and Laser Science and Technology Research Center Shahin Shahr, Malek Ashtar University of Technology, Optics and Laser Science and Technology Research Center 1 3 2019 25 ICOP & ICPET 2019 417 420 07 06 2019 07 06 2019 In this paper, the flash lamp pump structure is simulated with a diffuse Ceramic cavity and Reflective elliptical cavity structure using the Zemax and LasCAD software. The results of the simulations show that the Reflective elliptical cavity has a higher pump efficiency, longer focal length of the thermal lensing and the symmetry and homogeneity of the better profile. However, the diffuse structure has a more uniform energy distribution and hence a higher temperature damage threshold and better cooling.   1669 Special Tunable THz metamaterial based on underdoped high-Tc superconducting Bi2Sr2CaCu2O8+δ Kalhor Samaneh Delfanazari Kaveh Ghanaatshoar Majid Laser and Plasma Research Institute, Shahid Beheshti University, Evin, Tehran, Iran Electrical Engineering Division, Engineering Department, University of Cambridge Laser and Plasma Research Institute, Shahid Beheshti University, Evin, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 421 424 07 06 2019 07 06 2019 In this paper, we report on the terahertz (THz) resonance response of a metamaterial based on high-temperature superconducting Bi2Sr2CaCu2O8+δ (BSCCO). We calculate the a-b plane complex permittivity and surface impedance of an underdoped BSCCO thin film, to study the electromagnetic response of the BSCCO split ring resonators (SRR) as a function of temperature. The dip in transmission resonance is found to be strongly temperature dependent with strongest resonance response at the lowest temperature. As temperature increases the transmission dip shifts towards lower frequencies at the same time with a decrease in resonance strength. The resonance frequency moves back to higher frequencies at temperatures close to the superconducting transition temperature (Tc) but the resonance strength continues to decrease. The dip in transmission resonance fades up completely above Tc. 1678 Special Using the optomechanical systems in the quantum repeater schemes Ghasemi Mahnaz Tavassoli Mohammad kazem Atomic and Molecular Group, Faculty of Physics, Yazd University, Yazd Atomic and Molecular Group, Faculty of Physics, Yazd University, Yazd 1 3 2019 25 ICOP & ICPET 2019 425 428 07 06 2019 07 06 2019 In this paper, we produce entanglement between two distant three-level atoms in order to prepare a quantum repeater. In this protocol, the distance between two target atoms is divided to four parts by inserting three quantum nodes (inserting six atoms) between them. The atoms have been labeled by (1, 2, … 8) and the pairs (1, 2), (3, 4), (5, 6) and (7, 8) have been prepared in entangled states. At first, by performing interaction between atoms (2, 3) and (6, 7) in the presence of optomechanical systems, entanglement is generated between atoms (1, 4) and (5, 8). Finally, we achieve the entangled states between atoms (1, 8) by performing interaction between atoms (4, 5) in an optical cavity. The entanglement is evaluated via entropy. The optomechanical coupling strength to the field mode has no effect on entropy of atoms (1, 8), but the time periods of entropy of atoms (1, 4) and (5, 8) are decreased by increasing this coupling strength. Increasing the frequency of optomechanical mode leads to an increase in the time periods of entanglement between atoms (1, 4), (5, 8) and (1, 8) in all stages of the process. 1688 Special Investigation of anisotropy of underwater turbulence using image motion monitoring method Mohammadi razi Ebrahim Behboodi Morteza Rasouli Seyfollah Faculty of Mechanical Engineering, Department of Engineering, university of Bojnord, Bojnord, Iran Faculty of Mechanical Engineering, Department of Engineering, university of Bojnord, Bojnord, Iran Optics Research Center, Institute of Advance Studies in Basic Science, Zanjan, Iran 1 3 2019 25 ICOP & ICPET 2019 429 432 07 06 2019 07 06 2019 In this paper, the anisotropy of underwater turbulence was investigated using image motion monitoring method. Accordingly a beam of light with 532 nm wavelength after collimating with a diameter of 1 cm enters the underwater turbulence. The underwater turbulence is made up of an water-filled aquarium with dimensions of 20×20×30 cm3. The angle of arrival, AA, of light beam was measured at the end of the turbulence path at two directions perpendicular to propagation direction. Comparing the variances of AA in two directions, the anisotropy of underwater turbulence and influence of different temperature gradients on it were investigated. Results show the underwater turbulence is an anisotropic medium. In addition the anisotropy increases as temperature gradient increases.   1690 Special Effect of Heat Treatment on Resistivity of Core and Clad layers of Polymer Electro-Optic Modulators Hamedi Samaneh Electrical and Electronic Department of Shiraz University of Technology, Shiraz, Iran 1 3 2019 25 ICOP & ICPET 2019 433 436 07 06 2019 07 06 2019 In this paper, the effect of temperature on the resistivity of the core and coating layers in the polymer electro-optic modulators has been investigated. In the polling process, the temperature of the material increases to glass temperature, which will reduce its electrical resistance. The clad material is selected so that the resistivity is at least 100 times lower than the core layer. Under these conditions, most of the electric field is on the core layer, which leads to an increase in the polling efficiency and the maximum modulation voltage is on the core layer. By adding 15% EDOT: PSS to the PVA, its resistivity is reduced by a hundred times and its dependence on the heat is also decrease.   1939 Special Investigation of The Magneto-Optical Effect of The Iron Oxide Ferrofluid with Different Concentration Dehrouyeh Haniyeh Soheilian Asieh Tehranchi Mohammad mahdi Laser and Plasma Institute, Shahid Beheshti University, Tehran Laser and Plasma Institute, Shahid Beheshti University, Tehran Laser and Plasma Institute, Shahid Beheshti University, Tehran 1 3 2019 25 ICOP & ICPET 2019 437 440 09 08 2019 09 08 2019 Magneto-optical Faraday effect is a common method for investigating of the magnetic property of materials. In this study, effects of different concentration of iron oxide ferrofluids were investigated with magneto-optical Faraday method. Nanoparticles were synthesized by co-precipitation method and stabilized by adding citric acid. Faraday measurement demonstrated that by increasing the concentration of the ferrofluid, the Faraday rotation and saturation magnetization increased. In the second study, the ferrofluid Brownian’s relaxation time was also evaluated. Results showed that the relaxation time increased by increasing ferrofluid concentration.  1720 Special Introducing a semi-analytic model for investigating the laser and material thermal interaction Ghahramani Mohammad saeid Khalilzadeh Javad Karimi Mohammad reza siahvashi Naser Department of Photonics, Imam Hossain University, Tehran, Iran (Islamic Republic of) Department of Photonics, Imam Hossain University, Tehran, Iran (Islamic Republic of) Department of Photonics, Imam Hossain University, Tehran, Iran (Islamic Republic of) Department of Photonics, Imam Hossain University, Tehran, Iran (Islamic Republic of) 1 3 2019 25 ICOP & ICPET 2019 441 444 16 06 2019 16 06 2019 In this research the analytic method of Green's function and the numerical method of finite difference were combined to investigate the laser-material thermal interaction. A new semi-analytic method is introduced and used for simulation of interaction. With this method, it is possible to encounter surface radiation in the Green's function, as well as increase the accuracy and speed of the calculations. Based on presented theory and using the programming language C a code was written. The thermal interaction of the laser with Al (7075) is simulated. An experimental setup was provided for empirical assessment. Simulation results were compared with experiment results. Good agreement between simulation and experiment results indicate the accuracy of the method and written code based on it. The computational speed is also high compared to similar numerical software. 1738 Special Optical Pressure Sensor with Confocal Detection Ghorbani Ali Nouri Mohammad Salarinasab Milad Abdollahpour Daryoush Department of Physics, Institute for Advanced Studies in Basic Sciences, Prof. Sobouti Blvd., Zanjan Department of Physics, Institute for Advanced Studies in Basic Sciences, Prof. Sobouti Blvd., Zanjan Department of Physics, Institute for Advanced Studies in Basic Sciences, Prof. Sobouti Blvd., Zanjan Department of Physics, Institute for Advanced Studies in Basic Sciences, Prof. Sobouti Blvd., Zanjan 1 3 2019 25 ICOP & ICPET 2019 445 448 17 06 2019 17 06 2019 In this paper, a new method for intensity-based optical pressure sensing with confocal detection scheme is introduced. A continuous laser beam is focused on a reflective flexible diaphragm by a microscope objective. Upon a deformation of the diaphragm due to a pressure change, the transmitted light intensity from a pinhole placed in the confocal plane, is recorded and converted to the pressure measurements by a certain procedure. Results of the pressure measurement in the range of 98.65 kPa to 103.6 kPa are reported and the procedure of the measurement is explained. In addition to simplicity of the apparatus and interpretation of the recorded signals, the method can be readily modified to operate with a required sensitivity in a desired pressure range. This can be achieved by utilizing a different microscope objective and diaphragm material. 1651 Special Design of an All-Optical Logic Gate Based on Non-Linear MZI and the Straight Plasmonic Control Waveguides Noori Kourani Soheil Vahed Hamid School Of Engineering Emerging Technologies University of Tabriz School Of Engineering Emerging Technologies University of Tabriz 1 3 2019 25 ICOP & ICPET 2019 449 452 26 04 2019 26 04 2019 All optical signal processing in integrated photonic circuits and its applications in optical computing and communications require the ability to control light with light. Therefore, all-optical switching devices have attracted a lot of attentions. In this paper, two all-optical logic gates are designed by using of nonlinear Mach-Zehnder interferometer and straight plasmonic control waveguides. All- optical logic gates are based on the metal-insulator-metal (MIM) plasmonic waveguides. Using of the plasmonic structure leads to reduction of the device length and power consumptions.  1752 Special Simulation of inverse four-wave mixing in optical fibers and impact of different parameters on the output signal gain spectrum Pakarzadeh Hasan Torkian Shamim Karimi Mohammad javad Department of physics, Shiraz University of Technology, Shiraz, Iran. Department of physics, Shiraz University of Technology, Shiraz, Iran. Department of physics, Shiraz University of Technology, Shiraz, Iran. 1 3 2019 25 ICOP & ICPET 2019 453 456 18 06 2019 18 06 2019 In this paper, a new nonlinear self-action effect called self-parametric amplification is simulated which manifests itself as an optical spectrum narrowing in normal dispersion fiber and leading to a very stable propagation with a distinctive spectral distribution. The narrowing results from inverse four-wave mixing resembling an effective parametric amplification of the central part of the spectrum by energy transfer from the spectral tails. Using an analytical solution, we simulate the inverse four-wave mixing process and examine the impact of different parameters such as fiber length, the initial spectrum width and input power on the output signal gain spectrum. 1755 Special Investigation of Nonlinear Optical Properties of Thin Cu Nano-Structure Films Prepared by Resistance Thermal Evaporation deposition Etminan Mahsa Hosseini tehrani Noshin sadat Koohian mohammad abadi Ataollah Department of Physics, University of Tehran Department of Physics, University of Tehran Department of Physics, University of Tehran 1 3 2019 25 ICOP & ICPET 2019 457 460 18 06 2019 18 06 2019 In this paper, the nonlinear optical properties of copper nanostructure thin-films, including nonlinear refractive index and absorption coefficient, have been investigated. The samples were prepared in two thicknesses of 25 nm and 130 nm by Resistance Thermal Evaporation(RTE) deposition method, also the Z- Scan technique with continuous diode laser at 532 nm was used to obtain nonlinear optical properties. The results of this study shows that the sing of nonlinear refractive index changes with increasing thickness of the films, and the nonlinear absorption coefficient decreases. 1757 Special Design and set up of a Layout for measurement of group delay dispersion of dispersive mirrors Torbat esfahani Hadiseh Fallah Hamidreza Haji mahmoodzadeh Morteza Mardiha Mahdi Saghebfar Mohammad Department of physics, University of Isfahan Department of physics, University of Isfahan Department of physics, University of Isfahan Industry optic Isfahan Optics-Laser Science and Technology Research Center, Malek Ashtar University of Technology 1 3 2019 25 ICOP & ICPET 2019 461 464 18 06 2019 18 06 2019 Nowadays, there has been a lot of development in the production of chrip mirrors. These mirrors are being used to create ultrashort femtosecond pulses for high power lasers. In this study, we setup a Michelson interferometer to record white light interferons. Finally, we caculate the group delay dispersions using the wavelet transform method, which are in good agreement with standard data. 1759 Special Synthesis of Silicon Quantum Dots and its Optical Properties Study for Nano-sensor Applications Taheri Majid Mohseni armaki Seyed majid Department of Physics, Shahid Beheshti University, Evin, Tehran Department of Physics, Shahid Beheshti University, Evin, Tehran 1 3 2019 25 ICOP & ICPET 2019 465 468 18 06 2019 18 06 2019 In this work, optical properties of silicon quantum dots in ethanol for biosensor applications has been investigated.  A nanosecond pulsed laser ablation method for the synthesis of silicon quantum dots disperse in ethanol with blue photoluminescence is reported. The sample is characterized by UV-visible absorption spectrometer and the crystal structure analyzed by X-ray diffraction. The results of X-ray diffraction pattern have shown the formation of silicon nanocrystal in the colloid.  The silicon quantum dots in ethanol exhibits blue emissions in the spectral range of 460-480 nm when excited in the wavelength range of 365-415 nm. In addition, the fluorescence measurement of the colloid exhibits a good photostability and maximum intensity in pH 6 sodium phosphate buffer. The observed emission properties of the silicon quantum dots make it a valuable material for the optical probe in nano-sensor systems. 1764 Special Study of changes in the optical properties of graphene containing Selenium impurity by changing the percentage of impurity Safaei ardakani Yadollah Moradi Mahmood Department of Physics, Shiraz University, Eram square, Shiraz Department of Physics, Shiraz University, Eram square, Shiraz 1 3 2019 25 ICOP & ICPET 2019 469 472 27 06 2019 27 06 2019 In this paper, graphene containing Se impurity was studied for 4 impurities 2%, 3%, 5.5% and 12.5%. In the absorption spectrum for the ultraviolet range, in three cases, impurities of 2%, 3% and 5.5%, we have two peaks at around 12.58eV and 17.44eV, which can be attributed to graphene. In the case of 12.5% impurity other than the 12.37eV peak, which is similar to other structures, two new peaks arise and the peak of 17.44eV has a significant displacement. In the visible range and around it, cases of 2% and 3% impurities have one peak, and for the 5,5% and 12.5% we see two peaks which can have a variety of applications in optical devices,  particularly in visible absorption. 1775 Special High Sensitive Nano Structure Plasmonic Sensor Based on Metal-Insulator-Metal Waveguide Moradkhani Mojtaba Vahedi Mohammad School of Physics, Iran University of Science and Technology School of Physics, Iran University of Science and Technology 1 3 2019 25 ICOP & ICPET 2019 473 476 28 06 2019 28 06 2019 In this Paper, we investigate a plasmonic sensor based on a MIM waveguide coupled to a resonator. The resonant wavelengths of the resonator are 1050nm and 1490nm.The proposed structure has been numerically investigated using FDTD method and the shift of the resonance wavelength as a result of the change in the refractive index of the structure is explored. Maximum sensitivity and Figure of Merit (FOM) of 1480  and 134.5  was obtained respectively. The maximum spectrum shift due to 0.01 refractive index change of the medium of 15nm was recorded. 1780 Special Hybrid interferometer for characterizing micro-lenses Yazdani Roghayeh Fallah Hamidreza Department of physics, University of Isfahan, Isfahan, Iran Department of physics, University of Isfahan, Isfahan, Iran 1 3 2019 25 ICOP & ICPET 2019 477 480 28 06 2019 28 06 2019 In this paper, we present a hybrid interferometer which allows the measurement of the aberrations of micro-lenses as well as the specification of the focal length, thickness, and radius of curvature. The Twyman-Green and Mach-Zehnder interferometers are experimentally combined for full characterization of micro-lenses. This hybrid interferometer is equipped with a Shack-Hartmann wavefront sensor for testing the quality of micro-lenses in transmission. We describe the technique and report some experimental results. 1785 Special Comparison of Thermal Effects of Solid Laser Active Materials in Solid and Liquid Hosts Pour hashemi Seyed ahmad Khalilzadeh Javad Karimi Mohammad reza Laser-Optics Research center of I. H. Univ. Laser-Optics Research center of I. H. Univ. Laser-Optics Research center of I. H. Univ. 1 3 2019 25 ICOP & ICPET 2019 481 484 28 06 2019 28 06 2019 The thermal effects in high power solid state lasers, causing heterogeneity and distortion in the active material, reduce the output beam quality and can even cause damage to the active medium. This failure generates a limitation of the maximum power attainment from lasers. A Liquid laser active medium containing solid particles in the form of nano- or micro-sized colloidal solutions, or a mixture of powder and liquid, replaces solid state material to eliminate the thermal problems of high-power lasers. In this study, the thermal behavior of the laser medium with identical active particles in two solid and liquid hosts has been compared. For this purpose, a laser cavity with four flash lamps was designed by Zemax software, and its thermal distribution was simulated by LASCAD software. The results indicate good heat transfer, lower radial temperature gradient, and removal of the heat problem in high power lasers with the fluid active laser medium. 1797 Special Role of Optical Fluid in Control of Orbital Angular Momentum of Light in Circular Photonic Crystal Fibers Sharif Vahid Pakarzadeh Hasan Department of Physics, Shiraz University of Technology, Shiraz Department of Physics, Shiraz University of Technology, Shiraz 1 3 2019 25 ICOP & ICPET 2019 485 488 29 06 2019 29 06 2019 The use of orbital angular momentum (OAM) of light in optical communication systems has led to an increase in data transmission capacity. Circular photonic crystal fibers (C-PCFs) with an air-core in the center are good candidates for guiding OAM of light. In this paper, a special design of C-PCFs is simulated in Comsol software and the controlling of OAM modes is proposed based on optofluidic infiltrated C-PCF while keeping the geometrical parameters fixed. The results show the OAM modes can be well controlled in optofluidic-infiltrated C-PCFs over the wavelength range of 1.25-2.0 μm. 1807 Special The entanglement of a two atomic system in the presence of a spherical silver nanoparticle Mombeyni godazhdar Roya Amooghorban Ehsan Mahdifar Ali 1 3 2019 25 ICOP & ICPET 2019 489 492 29 06 2019 29 06 2019 In this paper, we study the entanglement of two level atoms near a spherical silver nanoparticle. By employing the Von Neumann equation and making use of the electromagnetic Green tensor associated with a dispersive and dissipative dielectric sphere, the decay rates and the Lamb shift of the atomic system are obtained. Then, by using the concurrence measure, we calculate the degree of entanglement of the atomic system. We observe that decay rates severely increase near the excitation frequency of the localized Polariton-Plasmons, while the concurrence value is nearly zero. 1828 Special Optical Properties of Gd2SiO5:Ce Nanopowders Synthesized by the Pechini Sol-Gel Method Mohammadi Hossein Abdi Mohammad reza Habibi Mohammad hossein Department of Physics, Faculty of Science, University of Isfahan, Isfahan Department of Physics, Faculty of Science, University of Isfahan, Isfahan Department of Chemistry, University of Isfahan, Isfahan 1 3 2019 25 ICOP & ICPET 2019 493 496 30 06 2019 30 06 2019 In this paper, pure phase Gd2SiO5 doped with cerium nanopowders were successfully synthesized by the Pechini sol-gel method. Formation and purity of nanopowders were confirmed by XRD and FTIR analyses and their crystallite size and crystal lattice strain were estimated to be 49 nm and 0.09% respectively. The morphology of the nanopowders and their elemental chemical composition were investigated by FESEM and EDX analyses. Studies have shown that most of nanoparticles have a size range between 100-400 nm. Then, the indirect band gap was estimated to be 4.4 eV using the DRS technique and the Tauc equation. The results have shown that doping with 2 mol% cerium concentration produces the highest photoluminescence intensity at 435 nm under excitation at 345 nm. 1833 Special Bandgap Engineering of Perovskite via Vapor-Assisted Solution Process (VASP) Fathzadeh Atefeh Abdollahi nezhand Bahram Moravvej farshi Mohammad kazem Faculty of ECE, Nano Plasmo-Photonic Research Group, Tarbiat Modares University, Tehran, Iran. Faculty of ECE, Nano Plasmo-Photonic Research Group, Tarbiat Modares University, Tehran, Iran. Faculty of ECE, Nano Plasmo-Photonic Research Group, Tarbiat Modares University, Tehran, Iran. 1 3 2019 25 ICOP & ICPET 2019 497 500 30 06 2019 30 06 2019 Using the Vapor-Assisted Solution Process (VASP), we investigate the effect of the bromine and iodine halogen organic compounds on the perovskite bandgap. For the bandgap engineering, layers of PbBrxI2−x (x=0, 1, 2), deposited on Meso substrates, are exposed to the MABr vapor and optimize the time and temperature for this process. Presence of MABr vapor increases the time required for the formation of the perovskite layer, with larger grans and more uniform surface. Moreover, as compared the ordinary two-step spin coating, VASP has the capability of synthesizing perovskite layers in large-scales with lower costs. Hence, VASP can overcome an obstacle that mass production of perovskite solar cells is facing. 1849 Special Effect of random thickness on Anderson localization in magnetophotonic crystals Sarabandi Mehrnaz Golshani Mojtaba Zamani Mahdi Faculty of Physics, Shahid Bahonar University of Kerman, Kerman Faculty of Physics, Shahid Bahonar University of Kerman, Kerman Faculty of Physics, Shahid Bahonar University of Kerman, Kerman 1 3 2019 25 ICOP & ICPET 2019 501 504 01 07 2019 01 07 2019 In this paper, the effect of Anderson localization on magnetic photonic crystal structures has been numerically investigated by generating a random error in layer thickness for a wavelength located at the center of photonic band gap. The Anderson localization length has been studied for different disorder strengths. The results show that the localization length, as a function of the magneto-optical rotation parameter, is different for right and left circular polarizations and it is linearly increased or decreased, respectively. In addition, the localization length increases by growth of the disorder strength. 1857 Special Design and installation of a system for the discovery of optical equipment by visualization Zamani Majid Kordrostami Zohair Abbasi Mahdi Department of Electrical and Electronic Engineering, Shiraz University of Technology, Shiraz Department of Electrical and Electronic Engineering, Shiraz University of Technology, Shiraz Optic & Laser Research Center, Malek-Ashtar University of Technology, Shahin Shahr, Isfahan 1 3 2019 25 ICOP & ICPET 2019 505 508 02 07 2019 02 07 2019 In this paper, a layout of Optical Discovery System is provided by image processing, consisting of a laser to clarify the opposite scene for detection and identification. The receiver set includes a camera, an image processing board, and an optical pickup alongside a laser transmitter. The system, with regard to the effect of the cat's eye, uses an image processing technique to fully observe the visibility range. Optical equipment available at its viewing angle has been revealed. This layout is fully integrated into the laboratory and the results of the tests are recorded and presented in this article. 1858 Special Investigation of charge transfer in peroveskite solar cells based on nanostructures of formamidinium-methylammonium Barakati Kamyar Moshaei Ahmad Bagheri Zahra Abbasian Sara Atomic and Molecular Group, Faculty of Physics,tarbiat modares university Atomic and Molecular Group, Faculty of Physics,tarbiat modares university Atomic and Molecular Group, Faculty of Physics,tarbiat modares university School of Physics, Institute for Research in Fundamental Sciences (IPM) 1 3 2019 25 ICOP & ICPET 2019 509 512 02 07 2019 02 07 2019 In order to reduce defects and improve the crystallinity of peroveskite layer, we introduce FAPbI3 as crystalline grains for controlling the growth of MAPbI3 crystals, so We will have a mixed peroveskite layer ( )  with the spin-coating method. The electron microscope and X-ray diffraction pattern exhibit better crystallinity and larger grains for the mixed peroveskite layer than the MAPbI3 layer. The positive correlation between crystallization and FAPbI3 concentration indicates that the crystallization process is controlled by induction of FAPbI3. In this paper, we have tried to show the specification of this peroveskite in a complete cell by studying the uv-visible absorption spectrum and SEM and the XRD spectrum. 1861 Special Optical and structural study of synthesized graphene oxide by Snowden Meier and modified Hummers method Zarei Kobra Malekfar Rasoul Ghanbari Hajar 1 3 2019 25 ICOP & ICPET 2019 513 516 02 07 2019 02 07 2019 The use of nanoparticles in various fields, including medical, medicine, industry and the environment, has been widely developed. Amongly, graphene oxide as a 2D material has been widely used due to the high surface, low production cost, hydrophilicity, and etc. In this research, the synthesis of graphene oxide was carried out using Snowden Meier and modified Hummers method, and the characteristics were performed by FTIR, UV-vis, and Raman spectroscopy and XRD pattern analysis. The results show that the quality of the synthesized graphene oxide by the modified Hummers method is more than the Snowden Meier method. 1865 Special Low Energy Consumption Plasmonic Modulator Based on Hybrid Metal-Insulator-Metal Structure Rastegari Mohammad reza Mohammadi pooyan Sohrab Zarifkar Abbas 1 3 2019 25 ICOP & ICPET 2019 517 520 02 07 2019 02 07 2019 In this paper, a plasmonic modulator with low energy consumption based on Hybrid Metal-Insulator-Metal waveguide is proposed. The modulator structure is composed of a Hybrid Metal-Insulator-Metal waveguide and Indium Tin Oxide active material which results in good optical confinement and low energy consumption. Simulation results show an energy consumption of 1.48fj/bit, extinction ratio of 17.54dB/µm, insertion loss of 0.77dB/µm and 3dB propagation length of 171 nm at the wavelength of 1550 nm. Our design demonstrates a considerable reduction in energy consumption and improvement in extinction ratio compared to previous works. 1870 Special Electric Field Determining the Size of Sephadex Biological Samples Using Digital holographic Microscopy Technique Najafian Hoorisa Rashidian vaziri Mohammad reza Sajad Batool Beygzadeh Amirmohammad Abbasi Amir Department of Physics, Alzahra University, Tehran, Iran Radiation Application Research School, Nuclear Science and Technology Research Institute, Tehran Department of Physics, Alzahra University, Tehran, Iran Radiation Application Research School, Nuclear Science and Technology Research Institute, Tehran Photonics and Quantum Technologies Research School, Nuclear Science and Technology Research Institute, Tehran 1 3 2019 25 ICOP & ICPET 2019 521 524 02 07 2019 02 07 2019 In this study, size of a highly used biological substance in medicine called sephadex is measured using the digital microscopic interferometry technique. Initially, magnification of the designed interferometer was determined using standard diffraction gratings and then the recorded size of the diffraction gratings was used as a scale for measuring the size of the sephadex specimens. Standard diffraction gratings with 100, 300 and 600 lines per millimeter were used for calibrating the digital holographic microscopy setup. Diameter of a G200 sephadex particle is estimated about 123.8 micrometers and it is shown that the measurement is consistent with a separate measurement with neobar lam technique.  1876 Special Effect of viscosity on rotation of gold nanoparticles in optical trap Samadzadeh Mohsen Hajizadeh Faegheh Department Physics, Institute for advanced studies in basic sciences (IASBS), Zanjan, Iran Department Physics, Institute for advanced studies in basic sciences (IASBS), Zanjan, Iran 1 3 2019 25 ICOP & ICPET 2019 525 528 02 07 2019 02 07 2019 Optical tweezers are powerful scientific instruments, which use a laser for trapping and controlling the motion of microscopic particles without any mechanical contact. A circularly polarized laser beam could apply orbital and spin angular momentums to trapped particles, which causes the particles to rotate. In this report, we optically trap gold nano spheres with 400 nm in diameter near the surface, and the effect of the numerical aperture and the viscosity of the surrounding medium on the rotation speed is investigated. The results show that with the numerical aperture of 1 for objective lens, it is possible to rotate a metallic nanoparticles up to 2.4 kHz, and the rotation speed is highly viscosity dependent. 1877 Special Investigation of thermal distribution generated by laser irradiation to tumor loaded by Iron Oxid-Gold nanocomplex by simulation study Asadi Mohammad reza Navaser Mahmood Shakeri zadeh Ali Khoei Samideh 1 3 2019 25 ICOP & ICPET 2019 529 532 02 07 2019 02 07 2019 In this study we simulated thermal distribution by 808 nanometer laser on a tumor tissue that is loaded with Iron Oxid@Gold nanocomplex using MRI images geometry of mouse model. With application of diffusion equation and  Pennes bioheat equation on the geometry of tumor and mouse body, thermal distribution by finite element method with Comsol software was computed. Our Simulation results is a poof that with the same condition of irradiation, presence of nanoparticles in tumor region locally increases the temperature compared to the case without nanoparticles. We can conclude that with this nanoparticles destruction of tumor is efficient and safer for patient normal tissue around tumor. 1879 Special Monitoring of civil structures using Fiber Optic Sensor Sabahi Mahdi Nowroozi Rahman Department Physics, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, Iran Department Physics, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, Iran 1 3 2019 25 ICOP & ICPET 2019 533 536 02 07 2019 02 07 2019 In this paper, a quasi-distributed optical fiber sensor has been studied theoretically and experimentally to measure the strain rate applied to ribbed rebar with 8-millimeter diameter. The fiber optic sensor used in this paper is based on the Mach-Zehnder interferometry. The results of the experiment indicate a very high matching with theoretical results which demonstrate %98.5 compliance in strain measurement. 1882 Special Charge transfer engineering of layers for stability of perovskite solar cells with planar structure Sani Ali Behjat Abbas Nematollahi Masoud Torabi Naeimeh Atomic and Molecular Group, Faculty of Physics, Yazd University, Yazd Atomic and Molecular Group, Faculty of Physics, Yazd University, Yazd Atomic and Molecular Group, Faculty of Physics, Yazd University, Yazd Atomic and Molecular Group, Faculty of Physics, Yazd University, Yazd 1 3 2019 25 ICOP & ICPET 2019 537 540 02 07 2019 02 07 2019 In this work, stability of perovskite solar cell with interface engineering of charge transport layers was investigated. Experiments demonstrates PEDOT:PSS hydrophilic underlayer leads to absorb moisture of air in the cell due to low contact angle (14°) causing the degradation decomposition of perovskite films. To solve this problem, we employ a classical organic small molecule C60 as the underlayer of perovskite films to achieve 11.1% of power conversion efficiency with remarkable moisture tolerance exposed to the atmosphere. With fabrication and characterization of solar cells with FTO/C60/perovskite/Au structure which is used 0.13M of C60 solution. the analyzing demonstrated fullerene hydrophobic underlayer not only drives the crystalline grain growth of high quality perovskite, but also contributes to the moisture tolerance of PSCs so C60 based devices maintained 70% of its efficiency over 1440 hour in air condition. 1890 Special Effect of Magnetic Field on Jeans Instability of Dusty Plasma with Electron and Ion kappa distribution Esmaeili shoja Lida Shahrasaei Laeia Pesteh'e Seyed jalal Department of Physics, Tabriz University, Tabriz Department of Physics, Tabriz University, Tabriz Department of Physics, Tabriz University, Tabriz 1 3 2019 25 ICOP & ICPET 2019 541 544 03 07 2019 03 07 2019 In this paper, the effect of the magnetic field on the Jeans instability in strongly coupled dusty plasma containing ions and electrons with kappa distributions, and dust grains with negative charge, with Maxwell distribution has been studied. We solved the fundamental equations, by the use of generalized hydrodynamic model, and obtained the dispersion relation from kinetic and hydrodynamic theories, we found that both lead similar results. We calculate the growth rate of instability in the case of hydrodynamical model. 1895 Special Investigation of the Plasmonic Modes in Vertical Nano-holes Alibeigloo Pouya Ghorbanzadeh Mostafa Moravvej farshi Mohammad kazem Faculty of ECE, Nano Plasmo-Photonic Research Group, Tarbiat Modares University, Tehran School of Electrical & Computer Engineering, Hakim Sabzevari University, Sabzevar Faculty of ECE, Nano Plasmo-Photonic Research Group, Tarbiat Modares University, Tehran 1 3 2019 25 ICOP & ICPET 2019 545 548 04 07 2019 04 07 2019 We investigate the behavior of the plasmonic modes excited by the nanoholes structures. For this purpose, we have designed a vertical nanohole structure that realizes the different plasmonic fields maxima when excited with different incident wavelengths. After examining the effect of the substrate material and nanohole dimensions on the excited plasmonic modes, we have shown the realization of the superposition effect and displacement of the maximum field intensity along the depth of the double-step cylindrical holes. Simulations show that the proposed structure can be used as a plasmonic manipulation system, by well adjusting the incident laser beam, to move nanoparticles along the depth of the proposed nanoholes. 1902 Special Design and Simulation of Radar Wave Meta-material Absorber for Reducing Radar Cross Section of Objects Rezayat fam Majid Malekzadehfard khangheshlaghi Abdollah Optic and Laser Research Center, Imam Hussein University, Tehran Optic and Laser Research Center, Imam Hussein University, Tehran 1 3 2019 25 ICOP & ICPET 2019 549 552 05 07 2019 05 07 2019 this article presents a study on a radar wave meta-material absorber. The absorber is constructed from a periodic array of a resonant structure with the thickness of 0.017 millimeter. Simulation results using CST software show that the absorber can operate with an absorption peak of 99.9 % at frequency of 9.04 GHz given a normally incident electromagnetic wave which will reduce the radar cross section down to 30 dB and by using this structure, body of an objects can be stealth. 1929 Special Protecting coherenceeffects via qubit transition frequency modulation in the presence multi-photon transitions Zare Farzaneh Tavassoli Mohammad kazem Bahadorifar Behnam Atomic and Molecular Group, Faculty of Physics, Yazd University, Yazd Atomic and Molecular Group, Faculty of Physics, Yazd University, Yazd Atomic and Molecular Group, Faculty of Physics, Yazd University, Yazd 1 3 2019 25 ICOP & ICPET 2019 553 556 06 07 2019 06 07 2019 In this paper we want to preserve the coherenceeffects in the interaction of a qubit with a single-mode field besides a reservoir via qubit frequency modulation, however, in the presence multi-photon (two- and four-photon) transitions. After introducing the model and a proper Hamiltonian, and solving the time-dependent Schrodinger equation, the probability amplitudes are obtained by which we plot the coherence effects in term of scaled time for different parameters. We show that the single- and two-photon the coherence process possess similar behavior, however, the decoherence effects in four-photon occurs inshorter times comparing with the two- (single-)photon transition.   1930 Special The Elimination of Stimulated Brillouin Scattering in Optical Fiber By Using Periodic strain Soltan mohammadian Mohammad Babazadeh Amin Nouroozi Rahman 1 3 2019 25 ICOP & ICPET 2019 557 560 06 07 2019 06 07 2019 Despite the use of stimulated Brillouin scattering in amplifying the input signal, this scattering can cause undesirable effects in data transport or increase the power of fiber lasers. In this paper, a method based on the application of periodic stress is presented to address this undesirable effect. Based on this, by modulating the refractive index of the optical fiber, at 100 kHz, the intensity of the Stokes spectrum was reduced by the stimulated Brillouin scattering, which was twice as large. 1707 Special Designing a Sensor for Biomolecule in Deionization Water by Using Graphene-Gold SPs Sadeghi Zeynab Shirkani Hossein Physics department of Persian Gulf University Physics department of Persian Gulf University 1 3 2019 25 ICOP & ICPET 2019 561 564 11 06 2019 11 06 2019 In this paper, by using trapezius gold grating that covered by a graphene monolayer a surface Plasmon’s were formed in the near infrared region. By using the wavelength dependence of the Plasmon’s resonance on the optical properties of deionization water that is use for making biomolecules solution has been investigated. a biosensor in near infrared were suggested. By introducing the sensitivity coefficient of S=Δλ /Δn, and the quality factor Q=S/FWHM in refractive index from n=1.333 and Δn=0.001 sensitivity of the structure for deionization water was calculated. Then, the effect of trapezoidal and square grating on the sensor sensitivity and Quality was investigated and the best value for trapezoidal grating 900 nm/RIU and 1731, was reported respectively. 1732 Special Performance enhancement of the biosensor based-on graphene plasmonic waveguides Jabarzadeh Farnaz Habibzadeh sharif Amir Electrical Engineering Faculty, Sahand University of Technology, Tabriz, Iran Electrical Engineering Faculty, Sahand University of Technology, Tabriz, Iran 1 3 2019 25 ICOP & ICPET 2019 565 568 16 06 2019 16 06 2019 In this paper, impact of V-grooves designed in core region of dielectric loaded graphene surface plasmon waveguide has been investigated for enhancement of sensing performance. According to the simulation results, it has been shown that the V-grooves increase the interaction of analyte with plasmonic field of the waveguide and improve propagation length of guided modes. Therefore, biosensor based-on the proposed graphene plasmonic waveguide with two symmetrical V-grooves demonstrates longer propagation length and higher sensitivity as compared with the conventional dielectric loaded graphene plasmonic waveguide. 1692 Special Earth Magnetic Field Vector Measurement with Nano-Tesla Sensitivity Based on Atomic Magnetometers Zamani Amin Ranjbaran Maliheh Tehranchi Mohammad mahdi Khalkhali Seyed mohammad hossein Hamidi Seyedeh mehri Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran Physics Department, Kharazmi University, Tehran, Iran Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 569 572 07 06 2019 07 06 2019 Atomic magnetometers have found widespread applications in precise measurement of Earth’s magnetic field due to their high sensitivity. In theses measurements, various methods have been utilized to compensate the Earth’s magnetic field. In this paper, a method based on finding the minimum magnetic field by producing the opposite field through three pairs of Helmholtz coils and minimizing resonance frequency of the atomic magnetometer, has been proposed. Using this method, the exact value of Earth magnetic field vector is obtained as 35.132  with a sensitivity of 2 nT. 1665 Special Online detection and sorting of single-unit recording signal for closed loop optogenetic controlling Ghorbani Ahmad Seyed nazari Mirhossein Akbari Faezeh Fatahi Zahra Haghparast Abbas Dargahi Laila Latifi Hamid Zibaei Mohammad esmaeil Shahid Beheshti University, Tehran Shahid Beheshti University, Tehran Shahid Beheshti University, Tehran Shahid Beheshti University, Tehran Shahid Beheshti University, Tehran Shahid Beheshti University, Tehran Shahid Beheshti University, Tehran Shahid Beheshti University, Tehran 1 3 2019 25 ICOP & ICPET 2019 573 576 07 06 2019 07 06 2019 In closed loop optogenetics controlling of the neural system, for treatment of neurological diseases it should be used online neural signal processing. To investigation of optogenetics effects on the neural system or closed loop controlling, neuroscientists study the animal behavior or signal recording from the target area. One of the important brain signal recording is single-unit recording. In this paper, an algorithm is proposed to online spike detection and sorting them in single unit recording based on wavelet transform. This algorithm is programmed by Labview software and raw data is processed. Since it has a high processing speed and its simplicity, this algorithm can be run in a personal PC and can be used for studying and controlling the neural network system with closed loop optogenetics technique. This processing system is using at optogenetics group of Shahid Beheshti university for studying of some diseases such as addiction, seizer and autism. 1667 Special Structural and optical properties of Mn-doped Zn2SnO4 nanopowders Rahimi Fatemeh Asemi Morteza Ghanaatshoar Majid Laser and Plasma Research Institute, Shahid Beheshti University, Evin, 1983969411 Tehran, Iran Laser and Plasma Research Institute, Shahid Beheshti University, Evin, 1983969411 Tehran, Iran Laser and Plasma Research Institute, Shahid Beheshti University, Evin, 1983969411 Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 577 580 07 06 2019 07 06 2019 Zn2SnO4 has attracted attention for fabrication of transparent electronic devices such as solar cells. In this paper, Zn2SnO4 nanopowders with different values of Mn were synthesized by means of solid-state reaction method. The structural investigation revealed that the prepared powders at below 4% impurity had a single phase structure. At higher concentration of Mn, besides the Zn2SnO4 phase, secondary phases formed, namely Mn2O3 and Mn3O4. In the second step, the effect of vacuum annealing on the ferromagnetic properties of the prepared single-phase Mn-doped Zn2SnO4 was investigated. The optical characterization revealed that the band gap of the vacuum-annealed samples was higher than 4 eV. Furthermore, the formation of diluted magnetic semiconductor by doping Mn in Zn2SnO4 was verified. 1676 Special Increasing the Absorption and Uniformity of Pumping on the Nd:YAG Laser with Single Side Diode Pumping Structure. Zavosh Maryam Gharghi Pegah Mechanics Institute, Iranian Space Research Center Mechanics Institute, Iranian Space Research Center 1 3 2019 25 ICOP & ICPET 2019 581 584 07 06 2019 07 06 2019  In this paper, different ways to get uniform and increased absorption flux of Nd:YAG laser with single-side diode pumping geometry were investigated. In the first suggestion, the slab laser is coated from three sides and use an additional reflector at the entrance to the cavity with a slit for injection of the pumping radiation. In the other suggestion, we designed the optimal dual composition of divergent arrays micro lens and placed in front of the diode that by increasing the divergence angle makes the uniformity of pumping. The results of each simulation are compared and analyzed.  1680 Special Decreasing the Temperature sensitivity of high birefringent fiber optic in fiber loop mirror using non-adiabatic tapered fiber Layeghi Azam Latifi Hamid Zibaei Mohammad esmaeil Laser and Plasma Research Institute, Shahid Beheshti University Laser and Plasma Research Institute, Shahid Beheshti University Laser and Plasma Research Institute, Shahid Beheshti University 1 3 2019 25 ICOP & ICPET 2019 585 588 07 06 2019 07 06 2019 A high-birefringent fiber loop mirror (HB-FLM) setup was used as an optical refractometer by inserting a tapered high-birefringence fiber (THB) in to the FLM setup. The response of the THB-FLM is analyzed theoretically and experimentally. The sensitivity of the THB-FLM sensor temperature is -0.40 nm/˚C. The proposed sensor has such advantages as low temperature sensitivity, simple structure, and ease of fabrication. It also indicates that the FLM sensor based on THB is helpful to reduce temperature cross-sensitivity for the measurement of environment and biomedical parameters. 1682 Special LED-pumped Ce:Nd:YAG Multi-pass Optical Amplifier Tajabadi Samira Farahbod Amir hossein Hokmabadi Faezeh Nazari golshan Akbar Department of Physics, Shahed University, Tehran Department of Plasma and Nuclear Fusion, Nuclear Institute of Science and Technology, Tehran Department of Physics, Shahed University, Tehran Department of Physics, Shahed University, Tehran 1 3 2019 25 ICOP & ICPET 2019 589 592 07 06 2019 07 06 2019 Characteristics of a special design optical configuration where consist of a white light LED-pumped Q-switched Ce:Nd:YAG laser oscillator and a four-pass blue light LED-pumped Ce:Nd:YAG optical amplifier is studied experimentally and calculated numerically. The results of calculations show that a 120 ns laser pulse in the range of 10-100 microjoules, after four pass and the amplifier initial gain coefficient , the gain is  1.3, that is consistent with the experimental observations. Moreover, the numerical results show that a seven-pass amplifier with two active medium increases the gain up to 1.6. 1683 Special Experimental Study of Mode Structure of a LED-pumped Laser Oscillator Hokmabadi Faezeh Farahbod Amir hossein Tajabadi Samira Nazari golshan Akbar Department of Physics, Shahed University, Tehran Department of Plasma and Nuclear Fusion, Nuclear Institute of Science and Technology, Tehran Department of Physics, Shahed University, Tehran Department of Physics, Shahed University, Tehran 1 3 2019 25 ICOP & ICPET 2019 593 596 07 06 2019 07 06 2019 Mode structure of a solid-state laser oscillator is a very important technical issue in laser applications. The laser pumping with light emitting diodes has superiority over the flashlamps for controlling the pump intensity distribution over the active medium. In the present research, the mode structure of a LED-pumped Ce:Nd:YAG laser oscillator and its dependency on the intensity of pump intensity is experimentally studied. The observations indicate that for the pumping geometry and with controlling the LEDs current, it is possible to obtain different transverse mode structures. The observed mode structures cover a wide spectrum of Ince-Gaussian and the limiting well known Laguree-Gaussian and Hermite-Gaussian mode structure of the laser resonator and have a considerable mode stability. 1687 Special Force measuring in pico-Newton scales based on interferometry Jafariani Fatemeh Ahadi akhlaghi Ehsan Avvalin chaharsooghi Mohammad Moradimehr Shiva Tavassoli Mohammad taghi Department Physics, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran Department Physics, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran Department Physics, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran Department Physics, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran Department Physics, Faculty of science, University of Tehran, North Kargar Avenue, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 597 600 07 06 2019 07 06 2019 In this paper, we introduce an apparatus for measurement of weak forces based on measuring nanometer displacements and optical systems. The basic part of set up is a modified Michelson interferometer that the mirrors are replaced by two lightweight and thin reflective stripes. One of these reflective stripes is responsible for detecting the force that acts as a spring. The spring constant of the cantilever is adjustable with its length, so that a wide range of force can be measured in the range of pico-Newton to milli-Newton. The electrostatic force in a plane capacitive system was used to calibrate the force apparatus. The uncertainty of the force measurement was obtained about 50 pico-Newton. 1716 Special The growth of WS2 thin films by PLD method and investigation of nonlinear absorption and optical limiting Abutalebi Shabnam Khanzadeh Mohammad Marashi Seyed mohammad bagher Vali asr University of Rafsanjan, Faculty of basic science, Department of physics Vali asr University of Rafsanjan, Faculty of basic science, Department of physics Vali asr University of Rafsanjan, Faculty of basic science, Department of physics 1 3 2019 25 ICOP & ICPET 2019 601 604 13 06 2019 13 06 2019 In this study, nonlinear absorption and optical limiting of WS2 thin films was measured. WS2 thin films grown by pulsed laser deposition method and analyzes show this method is useful for the growth of high quality layers. On the other hand, nonlinear response of these layers is investigated by open apreture z-scan with 532nm contineous wave laser at 200mw. The results show nonlinear absorption of WS2 layers with various thickness and power of order103 . These layers are also suitable for applications such as optical limiting. 1718 Special The Quantum Optic Effect of the two-Layer PT Symmetric on an Incident Quantum Squeezed Light Pilehvar Elnaz Amooghorban Ehsan Moravvej farshi Mohammad kazem Faculty of Electrical and Computer Engineering, Nano Plasmo-Photonic Research Group, Tarbiat Modares University Shahrekord University, Faculty of Science, Department of Physics Faculty of Electrical and Computer Engineering, Nano Plasmo-Photonic Research Group, Tarbiat Modares University 1 3 2019 25 ICOP & ICPET 2019 605 608 13 06 2019 13 06 2019 We investigate the medium effect of the two-layer parity time (PT) symmetric on the quantum optical properties of an incident squeezed light at zero temperature. For this purpose, we calculate the quadrature squeezing of the output states of a two-layer PT, using the canonical approach in quantization of the electromagnetic field and modeling the electric permittivity functions of the constituent layers by the Lorentz model, for a situation in which the incident states on the right and left side of the two-layer PT are the quantum vacuum and squeezed states, respectively. It will be shown that although the PT loss effect is compensated in the phase symmetry regime, the output light is no longer squeezed. 1719 Special Simulation of heat transfer in fluids through conduction and convection using Moiré deflectometry Rajaei nezhad Afsaneh Rashidi Huyeh Majid Department of Physics, University of Sistan and Baluchestan,Zahedan,Iran Department of Physics, University of Sistan and Baluchestan,Zahedan,Iran 1 3 2019 25 ICOP & ICPET 2019 609 612 16 06 2019 16 06 2019 In this study, the conduction and convection modes in heat transfer have been investigated using Moiré deflectometry method. The method is based on the displacement of Moiré fringes due to a refractive index gradient, induced by a temperature gradient. For this, were evaluated Moiré fringe displacements under a temperature gradient on the fluid from up to down by COMSOL Multiphysics software. In this case, just heat conduction mode may be participating in the heat transfer of the fluid. Then, Moiré fringe displacements were determined under a temperature gradient on the fluid from a horizontal side to another horizontal side. In this case, heat transfer in the fluid may be happen through both mods of conduction and convection. The results show that when the heat transfer is directed only through the conduction, the Moré fringe displacements happen on a one direction at any time, but in the case in which both thermal modes are excited, some fluctuation may be observed in the Moiré fringe displacements. In addition, medium thermal response has been study under a temporal periodic condition on the boundaries.     1729 Special Observation and Investigation the Switchable Holographic Intensity Grating in Dye Dopped Polymer Film Ghamat Hamed Mohajerani Ezeddin Space Sensor Group, Institute of Mechanics, Iranian Space Research Center Organic Materials & Polymers Photonics Laboratory, Laser & Plasma Research Institute, Shahid Beheshti University, Tehran, Iran. 1 3 2019 25 ICOP & ICPET 2019 613 616 16 06 2019 16 06 2019 In this paper, we intend to use a Nd: YVO4 laser, whose wavelength is in the dye absorption region, to create a double-beam interference scheme on a polymer-bearing layer sample. This sample contains a dye layer of DR1, doped in PMMA polymer, in the guest-host method. Afterwards, with He-Ne laser radiation, we will see the diffraction caused by it. In the end, we will show that, by disconnecting the Nd: YVO4 laser and eliminatingthe interference pattern, the He-Ne dispersion laser effect is eliminated. 1743 Special Entanglement transfer from entangled three-mode nonlinear coherent states to separable qubits Anbaraki Azam Afshar Davood Department of physics, Faculty of science, Shahid Chamran University of Ahvaz, Ahvaz, Iran Department of physics, Faculty of science, Shahid Chamran University of Ahvaz, Ahvaz, Iran 1 3 2019 25 ICOP & ICPET 2019 617 620 17 06 2019 17 06 2019 The field state is introduced as superposition of two three-mode nonlinear coherent states with  out of phase and its entanglement is studied using concurrence. Interaction between this field state and three-qubit system with all qubits in the ground state is considered under Jaynes-Cummings model. Then, entanglement evolution of the qubit system is studied using negativity after interaction. The entanglement of the qubit system has been observed to be maximized at specific times and a certain value of coherency parameter. 1739 Special High Speed Computational Ghost Imaging of Moving Object Farhadianfard Pouria Kheradmand Reza Ahmadi kandjani Sohrab Research Institute for Applied Physics and Astronomy (RIAPA), University of Tabriz, Tabriz Research Institute for Applied Physics and Astronomy (RIAPA), University of Tabriz, Tabriz Research Institute for Applied Physics and Astronomy (RIAPA), University of Tabriz, Tabriz 1 3 2019 25 ICOP & ICPET 2019 621 624 17 06 2019 17 06 2019 Ghost imaging is a non-localized imaging method.The use of ghost imaging is the imaging form moving object and remote sensing. In this paper, theoretically and experimentally, using the improvement of software, increasing the speed of selective and random patterns and increasing the modulation speed, we have been able to retrieve the image of a moving object that moves at high speed with selective method. Also, the velocity of the moving object is obtained by tracking the movement path and the pattern production time. 1749 Special Design and Simulation of a Broadband 3dB Curved Directional Coupler based on Plasmonic Waveguides Babaei Mahsa Zarifkar Abbas Department of Physics, College of Science, Shiraz University, Shiraz, Iran Department of Physics, College of Science, Shiraz University, Shiraz, Iran 1 3 2019 25 ICOP & ICPET 2019 625 628 18 06 2019 18 06 2019 In this paper, a broadband curved directional coupler based on plasmonic waveguides is presented. The proposed coupler consists of a combination of curved and straight coupled plasmonic waveguides which results in a wavelength-independent directional coupler with an improved bandwidth. The designed coupler with dimension of 20 μm ×3 μm shows a splitting ratio of 3 dB± 1 dB and a bandwidth about 500nm at the central wavelength of 1600 nm which denotes considerable improvement of the bandwidth compared to previously reported coupler structures. 1917 Special Investigation of temporal evolution of red blood cell transmission spectrum by hyperspectral microscopy Mollaei Mina Darudi Ahmad Soltani Peyman Physics Department, University of Zanjan Physics Department, University of Zanjan Physics Department, University of Zanjan 1 3 2019 25 ICOP & ICPET 2019 629 632 06 07 2019 06 07 2019 In this paper, a hyperspectral microscopy was used to investigate the red blood cell spectrum in specified concentration of saline over time. The saline is used to keep red blood cells in outside of the body. In experiments we show that a red blood cell transmission intensity decrease by time. The changes in the spectrum of red blood cells over the course of different wavelengths are examined. 1786 Special Increasing the Laser Induced Damage Threshold of Nd:glass by CO2 Laser irradiation Hojjati zadeh Hashem Jelvani Saeed Hashemizadeh aghda Seyed ali Panahibakhsh Somayeh Department of Physics, Payam Noor University, Tehran Department of Physics, Payam Noor University, Tehran Department of Physics, Payam Noor University, Tehran Department of Physics, Payam Noor University, Tehran 1 3 2019 25 ICOP & ICPET 2019 633 636 28 06 2019 28 06 2019 In this paper, increasing the laser induced damage threshold of Nd:glass by 10.6 µm CO2 laser  is investigated. For this purpose, Nd:glass samples were irradiated with different laser parameters. Then, transmission and differential absorption spectra of samples before and after the irradiation were compared. Next, a 1064 nm Q-switched oscillator-amplifier Nd:YAG laser system with single longitudinal mode  TEM­00 pulses was used for the damage threshold experiment. By optimizing CO2 laser irradiation parameters, damage threshold for an irradiated sample was increased about 3.10 times. The results of this study are very important, considering that Nd: glass is used as an active medium and amplifier in high-power lasers. 1792 Special Synthesis of blue ceramic based on CoAl2O4 Nano pigment by solid state method and optical properties characterization Amini Azam Khajeh aminian Mohsen Khajeh mehrizi Mohammad Motahari Hamid Vaselnia Seyed yousef 1 3 2019 25 ICOP & ICPET 2019 637 640 29 06 2019 29 06 2019 In this paper cobalt aluminate (CoAl2O4) has been synthesized by ceramic method using CoCl2 and Al2O3. The calcination process for pigment has been performed at 1200ᵒC. The Nano-pigment has been dispersed in a solvent by a milling system and an ink is obtained. The ink is used for printing on the ceramic surface. The Nano pigments have been analyzed by XRD, SEM and CIE colorimetric system. XRD spectrum shows the pigments is composed of two crystal structure containing CoAl2O4 and Al2O3. SEM images show the average particle size for pigment is about 237 nm and the average particle size for pigments on the printed ceramic is about 115 nm. Color values of samples indicate the blue values of49.5 and 34.37 for nano pigment powder and printed respectively.   1800 Special Calculating the force exerted on a Polymer Sample by a Space-varying Polarized Beam Using Simulation Alvandi Mohammad yousef Karimi Ebrahim Khalesifard Hamidreza Department of Physics, Institute for Advanced Studies in Basic Sciences, Zanjan, Iran Department of Physics, Institute for Advanced Studies in Basic Sciences, Zanjan, Iran Department of Physics, Institute for Advanced Studies in Basic Sciences, Zanjan, Iran 1 3 2019 25 ICOP & ICPET 2019 641 644 29 06 2019 29 06 2019 In this paper, we have calculated the force exerted on a polymer PAAD-22 sample by a Space-varying polarized beam or known as a vector beam, based on simulation. To do this we have used the MATHEMATICA. A Space-varying polarized beam is produced by superposition of two different modes of vortex beams. Comparing the graphs of forces exerted on the polymer sample and the graphs showing their polarization directions, we come to two different results; first, there is a singularity in the force exerted on the polymer. The singularity is correspondent to the vortex area located on the beam. Second, for every mode of the vector beams, the forces exerted are approximately in the direction of polarization of the impinging beam. 1812 Special Electro-optical enhancement of nonporous Zn2SnO4-based dye-sensitized solar cell by electric field assisted sintering Shojaei far Mohsen Asemi Morteza Mohajerani Ezeddin Ghena'at shoar Majid Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 645 648 29 06 2019 29 06 2019 Third generation nanostructure-based solar cells such as dye-sensitized solar cells (DSSCs) are green and low-cost future substitute for silicon-based solar cells. Zn2SnO4-based DSSCs are attractive due to their interesting properties, but aggregated Zn2SnO4 nanoparticles with their limited surface and numerous trap states deteriorate DSSC performance. Electric field assisted sintering (EFAS) due to its outstanding impacts on optical and electrical characteristics can boost DSSC performance. EFAS could manipulate nanostructure matrix remarkably enhanced light harvesting further; this method helps to improve electron transportation by decreasing trap states and increasing recombination resistance. The reported strategy is applicable in numerous electro-optical devices including nanoporous medium such as perovskite solar cells. 1819 Special Simultaneous Implementation of Three-Input XOR and XNOR Logic Gates by Using Graphene-Based Plasmonic Waveguides Rezaei Mirhamid Zarifkar Abbas Department of Communications and Electronics, School of Electrical and Computer Engineering, Shiraz University Department of Communications and Electronics, School of Electrical and Computer Engineering, Shiraz University 1 3 2019 25 ICOP & ICPET 2019 649 652 30 06 2019 30 06 2019 In this paper, a graphene-based plasmonic structure is proposed for simultaneous implementation of three-input logical XOR and XNOR operations. In this structure, the surface plasmon polaritons (SPPs) are stimulated at the interface of graphene and dielectric layers and their transmission are controlled by an external voltage source. In the presented logic gates, the input signals are electrical and the output signal is optical. Simulation results demonstrate that the extinction ratio (ER) of 10.33 dB is achievable for the designed gates. Also, the footprint of the proposed structure is less than 1.5 μm2. Our studies have shown that a structure for simultaneous three-input logical XOR and XNOR operations has not been reported so far. 1840 Special Investigation of dynamic multicomponent lipid membranes by means of speckle patterns Sasani Shiva Dorudi Ahmad Farzam rad Vahideh Department of Physics, University of Zanjan, Zanjan Department of Physics, University of Zanjan, Zanjan Department of Physics, University of Zanjan, Zanjan 1 3 2019 25 ICOP & ICPET 2019 653 656 30 06 2019 30 06 2019 The lipid membranes of the study are similar to cell membranes.. In this article, we study the evolution of this lipid membranes by means of speckle pattern. By investigation the correlation function for each image, the mean of the correlation length between the speckles is obtained. we drawing correlation length graph versus time, the upward trend in the graph indicates the high degree of sample activity and after 25 seconds, the oscillation of the correlation length around a constant is indicative of the stability of the size of phase domains  and their long-range alignment. Finally, by referring to reference 2, we express the similarity between the two studies in obtaining the same result. 1866 Special Experimental set up and construction of the solid state side pumped Nd:YAG laser, Q switched by acousto-optic modulator Fooladi Mohammad Khanzadeh Mohammad Didebanmehr Morad Department of Physics, University of Vali-Asr rafsanjan, Rafsanjan Department of Physics, University of Vali-Asr rafsanjan, Rafsanjan Laser Research Group, Did Afzar Jonoub, Shiraz 1 3 2019 25 ICOP & ICPET 2019 657 660 02 07 2019 02 07 2019 In this research, The Nd:YAG pulsed laser with 1064 nm output wavelength has been considered experimentally. This setup is a linear cavity with 45.5 cm length that the length of the cavity is experimentally obtained. Nd:YAG laser rod has been sidely pumped and with three sides by GaAlAs diode laser arrays with 80 W maximum output power. The Q-switching was done by an Acousto-Optic Modulator (AOM) and finally, minimum laser pulse width was obtained 500 Nanosecond in 2 KHz repetition rate. In pulse mode and 80 W pumping power, maximum energy was obtained 6.2 mJ in 2 KHz repetition rate and the maximum output power was obtained 16.2 W in 20 KHz repetition rate. 1869 Special Annealing Effects on Optical Properties Zinc Oxide (ZnO) Thin Films Hasani Faezeh Simdar Mehrnaz Bassam Mohammad amin Mousavi Seyedeh soraya Sajad Batool Physics Department, Alzahra University Physics Department, Alzahra University Electronics Department, Malek Ashtar University Physics Department, Alzahra University Physics Department, Alzahra University 1 3 2019 25 ICOP & ICPET 2019 661 664 02 07 2019 02 07 2019 Zinc Oxide, as one of the most important metal oxides, has been widely applied in optical devices due to its unique properties. In fact, the specifications of the ZnO thin film depend thoroughly on the deposition method. Pulsed Laser Deposition (PLD) is one of the most efficient methods for preparing ZnO films. In this paper, the optical behavior of prepared ZnO thin films through PLD was investigated using two kinds of samples, as deposited layer and the annealed sample. For this aim, absorption, transmission and optical band gaps of the samples were measured by the use of UV-VIS spectroscopy. After annealing, the ultra-violet transmission rate was increased by 20% and the energy band gap was increased by 0.3 eV. Moreover, the surface morphology of the samples was studied using the optical and scanning electron microscopy images which ultimately showed an increase in the grain’s size. 1885 Special Investigating the amount of clay and calcium carbonate by using a reflection spectrum in the near infrared region Matloubi baran Naser Mohajerani Ezeddin Laser and Plasma Research Institute, Shahid Beheshti University Laser and Plasma Research Institute, Shahid Beheshti University 1 3 2019 25 ICOP & ICPET 2019 665 668 03 07 2019 03 07 2019 Reflection spectroscopy is a non-destructive and fast technique based on optical principles. The spectral range used in this study is in the near infrared region. Most of the organic compounds and part of the mineral compounds absorb the frequencies in the infrared region. We perform a spectroscopy experiment on 27 samples of the soils which have been chemically analysed in the soil labs. In a MATLAB program, we use a continuum removal on the spectra from the reflection process, perform pre-processing techniques, and reach a particular pattern by comparing the resultant spectra and the concentration of clay and calcium carbonate in the samples. The pattern can help measure the above two soil properties in the new samples using reflection spectroscopy.  1886 Special Study of the optical bistability in three-level quantum well systems Taghdir Fatemeh Karimi Mohammad javad Pakarzadeh Hasan Department of Physics, Shiraz University of Technology, Shiraz Department of Physics, Shiraz University of Technology, Shiraz Department of Physics, Shiraz University of Technology, Shiraz 1 3 2019 25 ICOP & ICPET 2019 669 672 03 07 2019 03 07 2019 In this paper, the optical bistability in a ring cavity containing a three-level quantum well system is studied. The impacts of the frequency detuning of the control field and the cooperative parameter on the optical bistability are investigated. Results show that the appearance of the optical bistability can be controlled by adjusting the frequency detuning and the cooperative parameter 1893 Special The Investigation of temperature response of the Hybrid Fabry_perot micro cavity sensor fabricated with Catastrophic fuse effect Hamedi Fatemeh Ranjbar naeini Omidreza Heydariazar Amir Latifi Hamid Laser & Plasma Research Institute, Shahid Beheshti University, Tehran, Iran Laser & Plasma Research Institute, Shahid Beheshti University, Tehran, Iran Laser & Plasma Research Institute, Shahid Beheshti University, Tehran, Iran Laser & Plasma Research Institute, Shahid Beheshti University, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 673 676 03 07 2019 03 07 2019 The fabrication of a Hybrid Fabry Perot microcavity with a fiber destroyed by the catastrophic fuse effect is reported here. The sensor consists of two different cavities; an air cavity and the combination of the air and the silica cavity. Different cavity responses are extracted by using the Fast Fourier transform Method. temperature response of each individual cavity is also analyzed separately. The temperature sensitivity of ~ 9pm/oC and ~13pm/oC are obtained for hybrid and air cavity interferometer respectively in the temperature range of 60 to 90 °C. the sensor possesses some intrinsic properties such as simple fabrication procedure, cost-effective commodity, small size, solidity and high temperature sensitivity that makes it a good candidate for simultaneous measurement applications. 1899 Special Plasmonic Sensor based on the Third Harmonic Generated by an Array of Gold Nano-apertures Saeidi Farahnaz Ghorbanzadeh Mostafa Moravvej farshi Mohammad kazem Faculty of Electrical and Computer Engineering, Nano Plsmo-Photonic Research Group, Tarbiat Modares University, P. O. Box 14115-194, Tehran 1411713116, Iran Faculty of Electrical and Computer Engineering, Hakim Sabzevari University, P. O. Box 397, Sabzevar 9617976487, Iran. Faculty of Electrical and Computer Engineering, Nano Plsmo-Photonic Research Group, Tarbiat Modares University, P. O. Box 14115-194, Tehran 1411713116, Iran 1 3 2019 25 ICOP & ICPET 2019 677 680 05 07 2019 05 07 2019 We are proposing a plasmonic sensor based on the third harmonic generation from an array of rectangular nano-apertures in a 100-nm thick gold film. In the proposed structure, using the Finite difference time domain method, we show that due to the nonlinearity of the patterned gold film the third harmonic can be generated when the magnitude of the incident source (λ‌=‌1570 nm) is more than 3.1×108 V/m. To investigate the sensibility of the proposed structure, we show that by varying the optical properties (refractive index) of the surrounding medium from 1 to 1.3, the relative output power of the generated third harmonic increases for about 12000 times, while for the same conditions the fundamental mode increases just about 50 times. The proposed sensor can be used as an integrated sensor especially for lab-on-a-chip applications. 1909 Special Experimental investigation of Laser beam radiation on asphaltene sediments Izan Roghayeh Haddad Mohammad ali Behjat Abbas Department of Physics, Yazd University, Yazd, Iran, PO Box 89195-741. Department of Physics, Yazd University, Yazd, Iran, PO Box 89195-741. Department of Physics, Yazd University, Yazd, Iran, PO Box 89195-741. 1 3 2019 25 ICOP & ICPET 2019 681 684 05 07 2019 05 07 2019 Asphaltene precipitation and deposition are known serious problems during oil production. This problem significantly influences the productivity and yield of oil wells. Various methods are commonly applied for the removal and prevention of asphaltene depositions meantime, laser-based methods have been considered rarely compared to the other methods for this purpose. In this report, the results of intense laser beam radiation on asphaltene clusters are tentatively studied. It is shown that in the presence of laser radiation, nano- structure of asphaltene are produced and their average size reduces by increasing of the power of laser beam. 1901 Special Quantum communication using polarization-orbital angular momentum of photon hybrid states Maddahi Mohaddaseh Farman Farnaz Bahrampour Alireza Departemant of Physics, Sharif University of Technology,Tehran Departemant of Physics, Sharif University of Technology,Tehran Departemant of Physics, Sharif University of Technology,Tehran 1 3 2019 25 ICOP & ICPET 2019 685 688 05 07 2019 05 07 2019 Orbital angular momentum (OAM) is one of the photon’s degrees of freedom in infinite-dimensional Hilbert space, which is used in quantum communication and quantum key distribution. In this paper we propose a method for implementing BB84 protocol in higher dimensions by encoding information on hybrid states of OAM and spin of photons. It has been shown that this method does not need for alignment of the transmitting and receiving frames. 1911 Special The Effect of Pump parameters on the performance of a Nd:GdVO4 Q-Switched and Mode-Locked Laser Rajaei Seyed hesam Honarasa Gholamreza Keshavarz Alireza Department of Physics, Shiraz University of Technology, Shiraz Department of Physics, Shiraz University of Technology, Shiraz Department of Physics, Shiraz University of Technology, Shiraz 1 3 2019 25 ICOP & ICPET 2019 689 692 05 07 2019 05 07 2019 In this paper, the behavior of a Q-switched and mode-locked Nd:GdVO4 laser with Cr4+:YAG saturable absorber is simulated by using the coupled rate equations. For this purpose, the rate equations are solved by fluctuation mechanism and the average output power and pulse energy are calculated. Also, the impact of the incident pump power and average radius of the pump beam on the performance of the laser is investigated. The results show that as the incident pump power and average radius of the pump beam are increased, the pulse energy is increased. 1912 Special Accurate solution of the transport of intensity equation by the Hartmann wavefront sensor Soudi Mahdi Doroudi Ahmad Soltani Peyman Physics Department, University of Zanjan Physics Department, University of Zanjan Physics Department, University of Zanjan 1 3 2019 25 ICOP & ICPET 2019 693 696 05 07 2019 05 07 2019 The TIE is a simple, Non-Interferometric method with high spatial resolution to measure the phase of the wavefront. In situations that interferometry methods can not be used TIE can be applied such as: low-coherency of  light source or the presence of vibration in the optical system for measuring the wavefront. The accuracy of the reconstructed wavefront by the TIE depends on amount of Δz. In this paper, we intend to find optimum Δz by merging the TIE and the Shack-Hartmann method. 1915 Special The effect of gold nanoparticles on the optical properties of U87MG, brain cancer cells Khaksar jalali Bahareh Mousavifard Seyedeh saba Salmani shik Somayeh Majlesara Mohammad hossein Nabiuni Mohammad Photonic lab, Department of physics, Kharazmi University, Karaj, Iran Photonic lab, Department of physics, Kharazmi University, Karaj, Iran Photonic lab, Department of physics, Kharazmi University, Karaj, Iran Photonic lab, Department of physics, Kharazmi University, Karaj, Iran Department of Cell and Molecular Biology, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 697 700 05 07 2019 05 07 2019 In this paper, in order to recognize the optical characteristics of human brain cells of the U87MG cell line, by adding 20 nm gold nanoparticles at different concentrations to four cell samples, and by Z-scan technique, the nonlinear refractive index (0/294, 1/35, 1/72 and 4/85) × 10-7 (cm2/W) have been obtained and also linear absorption for all samples have been calculated. 1935 Special Tunable resonant 1D photonic crystal based on InAs Quantum dots Razi Sepehr Khalili hezarjaribi Mahdi Faculty of Electrical Engineering, Urmia University of Technology Faculty of physics, Iran University of Science and Technology, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 701 704 06 07 2019 06 07 2019 New defective resonant photonic crystals with optical response in infrared frequency range is proposed. This crystals is composed of periodic layers of slabs containing InAs quantum dots (QDs) and GaAs as barriers. Transfer matrix approach is utilized for investigation of the optical features of the proposed structures and in order to increase the simulation accuracy, despite of the previous studies, the effect of the disorders caused by fluctuations of the sizes of the layers/QDs are considered. Results show that disrupting the structural order of the crystal causes a defect mode generation in the band gap of the reflection spectrum. Due to the possible potentials of the defective structures in photonic devices such as optical filters/switches, tunability of its optical response is also investigated with taking into consideration of the crystal temperature, light incident angle and using an external control wave. 1735 Special Measurement of linear and nonlinear optical properties of a thin film including Molybdenum Oxide nanorods grown by electrochemical deposition method Ghasempur ardakani Abbas Sadeghi Niloofar Haghighi Hanieh Hasani Zahra Physics Department, College of Science, Shiraz University, Shiraz, Iran, Physics Department, College of Science, Shiraz University, Shiraz, Iran, Physics Department, College of Science, Shiraz University, Shiraz, Iran, 1 3 2019 25 ICOP & ICPET 2019 705 708 16 06 2019 16 06 2019 In this paper, a layer including Molybdenum oxide nanorods is grown on a FTO substrate. Then for sample characterization analyses such as transmission spectrum, x-ray diffraction and scanning electron microscopy are applied. Furthermore, the linear absorption coefficient is obtained by plotting the output power versus input power. Finally, we measure the nonlinear refractive index and nonlinear absorption coefficient using the closed and open aperture z-san technique.       1736 Special Fabrication of random lasers with a resonant feedback based on a thin film including Molybdenum Oxide nanorods grown by electrochemical method Ghasempur ardakani Abbas Sadeghi Niloofar Physics Department, College of Science, Shiraz University, Shiraz, Iran Physics Department, College of Science, Shiraz University, Shiraz, Iran 1 3 2019 25 ICOP & ICPET 2019 709 712 16 06 2019 16 06 2019 In this paper, first a layer of Molybdenum oxide including nanorods is grown using electrochemical method. Then a random laser is fabricated based on this nanostructure and rhodamin B organic dye. Furthermore, we measure the pumping threshold for this laser. Our experimental results show that narrow peaks appear in the emission spectrum with increasing the pumping energy and the feedback of the proposed random laser is resonant. In addition, we study the effect of changing the pumping region on the emission spectrum.       1697 Special Simulation and analysis of active coupled cavity soliton lasers in presence of population inversion with noise analysis Motahari nia Ahmad Mahmoodi aghdami Keivan Kheradmand Reza Photonics Group, Research Institute for Applied Physics and Astronomy, University of Tabriz Department of Physics, Payame Noor University, P.O. Box: 19395-3697, Tehran, Iran Photonics Group, Research Institute for Applied Physics and Astronomy, University of Tabriz 1 3 2019 25 ICOP & ICPET 2019 713 716 08 06 2019 08 06 2019 The existence, dynamics and switching of basic dark and bright spatial soliton in coupled active cavities array above lasing threshold, driven by an external holding beam is assessed here. Different types of discrete cavity soliton lasers are introduced. Their stability against noises is analyzed. 1704 Special Investigation of the chirp effect on the temperature rising due to the interaction of femtosecond laser pulses with silicon Goodarzi Reza Razaghi Davood Hajesmaeilbaigi Fereshteh Photonics and Quantum Technologies Research School, Nuclear Science and Technologies Research Institute, Atomic Energy Organization of Iran Photonics and Quantum Technologies Research School, Nuclear Science and Technologies Research Institute, Atomic Energy Organization of Iran Photonics and Quantum Technologies Research School, Nuclear Science and Technologies Research Institute, Atomic Energy Organization of Iran 1 3 2019 25 ICOP & ICPET 2019 717 720 11 06 2019 11 06 2019 Femtosecond laser pulses due to their wide frequency spectrum will be chirped when propagating into any environment and this phenomenon is unavoidable for femtosecond laser pulses. In this paper, the effect of laser chirping on the interaction is investigated. The temperature of the carriers increases by about twice while using a chirped pulse laser. Also, the number of free carriers for the chirped pulses has enhanced and the lattice temperature has increased about three times relative to the un-chirped pulse. Finally, it has been shown that using a chirped pulse laser can increase the absorption of laser energy and, consequently, increase the temperature of the silicon. Also, negatively chirped laser pulse, due to deeper penetration into the sample, leads to an increase in the number of hot carriers and sample temperature. 1742 Special Teleportation of superposed nonlinear coherent states Anbaraki Azam Afshar Davood Department of physics, Faculty of science, Shahid Chamran University of Ahvaz, Ahvaz, Iran Center for Research on Laser and Plasma, Shahid Chamran University of Ahvaz, Ahvaz, Iran 1 3 2019 25 ICOP & ICPET 2019 721 724 17 06 2019 17 06 2019 Quantum teleportation is a process in which a quantum state is transmitted from one location to another, without disclosing any information about it. This process is performed by quantum measurements and classical communications. In this paper, the teleportation of superposed nonlinear coherent coherent states is investigated using even and odd nonlinear quasi bell states. It is observed that when we consider the maximally entangled quasi Bell states as quantum channel, the probability of successful teleportation is an increasing function of the parameters involved.  1763 Special Study of optical properties of bi-layer graphene with different impurities (gr + Se / gr + X: (X = Ga, P, S)) and the study of the possibility of finding surface plasmons Safaei ardakani Yadollah Moradi Mahmood Department of Physics, Shiraz University, Eram square, Shiraz Department of Physics, Shiraz University, Eram square, Shiraz 1 3 2019 25 ICOP & ICPET 2019 725 728 27 06 2019 27 06 2019 In this paper, the optical properties of bi-layer graphene in Bernal phase with different impurities are calculated for three cases (gr + Se / gr + Ga), (gr + Se / gr + P) and (gr + Se / gr + S). For the case of (gr + Se / gr + Ga) in two ranges, (12.015-12.425eV) with a maximum depth of -0.318 and (16.215-16.965eV) with a maximum depth of -0.676, the value of  is negative, whereas in these two ranges  is positive, therefore, this behavior is the responsible for the formation of plasmons. For the region of (E <10eV), the absorption spectrums of all three structures have significant differences that are applied in various optical fields. 1768 Special The effect of annealing temperature on the Performance and stability of MAPbI‌‌3-based perovskite solar cells Valipour Farzaneh Behjat Abbas yazdi Ebrahim Torabi Naeimeh Atomic and Molecular Group, Faculty of Physics, Yazd University, Yazd Atomic and Molecular Group, Faculty of Physics, Yazd University, Yazd Atomic and Molecular Group, Faculty of Physics, Yazd University, Yazd Atomic and Molecular Group, Faculty of Physics, Yazd University, Yazd 1 3 2019 25 ICOP & ICPET 2019 729 732 28 06 2019 28 06 2019 Quality of the perovskite thin films is mainly determined by various parameters such as substrate morphology, anti-solvent engineering and annealing temperature. In this study, optical, morphological as well as structural parameters of fabricated perovskite films in different annealing temperatures have been investigated. It was shown that, the evaporation rate of the DMSO is faster at higher temperature, and the photovoltaic parameters and crystalline structure of the perovskite that was prepared at 100℃ is better than the other samples. Moreover, performance of these samples were examined for 30 days, showing higher efficiency and more stability. 1769 Special Thermal stability study of MAPbI3 - based perovskite solar cells Valipour Farzaneh Behjat Abbas Yazdi Ebrahim Torabi Naeimeh Atomic and Molecular Group, Faculty of Physics, Yazd University, Yazd Atomic and Molecular Group, Faculty of Physics, Yazd University, Yazd Atomic and Molecular Group, Faculty of Physics, Yazd University, Yazd Atomic and Molecular Group, Faculty of Physics, Yazd University, Yazd 1 3 2019 25 ICOP & ICPET 2019 733 736 28 06 2019 28 06 2019 Performance of an organic-inorganic halide perovskite solar cells have been improved recently. However, thermal stability is a challenge to the commercialization of organic-inorganic halide perovskite solar cell technology. In this work; thermal stability of perovskite solar cells in air at 120℃, and in 20-minute interval time are investigated. The primary power conversion efficiency of the fabricate cells decreases in the first 20 minutes. Thermal degradation of the fabricated perovskite films and the fabricated cells was compared... It was observed that the thermal decomposition of the perovskite-based solar cell was faster than the perovskite film. This instability is related to the tendency of metal electrodes migrating into the perovskite at elevated temperatures. The results of this study can be considered in choosing the appropriate practical method to solve thermal stability problem of perovskite solar cells. 1776 Special Study of surface morphology and introducing a novel method to calculate correlation length Dayyani Saeed Mahdieh Mohammad hossein Department of physics, Iran University of Science and Technology, Narmak, Tehran Iran Department of physics, Iran University of Science and Technology, Narmak, Tehran Iran 1 3 2019 25 ICOP & ICPET 2019 737 740 28 06 2019 28 06 2019 In this study, morphology of nano-structured surface is measured by image processing of AFM (atomic force microscopy) images using a developed code (in MATLAB environment). For determination of surface morphology two parameters ; RMS roughness and correlation length, are important. In this article a novel method is introduced in which distance distribution function of neighbor peaks around a peak are considered for calculating the surface parameters. This method works well for estimation of surface correlation length and can compete with common technique in which autocorrelation function is used. 1737 Special Comparison of coherent and incoherent beam combining high-power lasers Tadayyoni Sogol Shayganmanesh Mahdi Physics Department, Iran University of Science and Technology, Tehran Physics Department, Iran University of Science and Technology, Tehran 1 3 2019 25 ICOP & ICPET 2019 741 744 17 06 2019 17 06 2019 In this paper propagation of fiber laser beam with 1 wavelength was investigated in various atmospheric turbulence levels for 1km target range. It is found that intensity of laser beam decreases by increasing turbulence. During the propagation, other important beam parameters are also affected by atmospheric turbulence. Regarding laser applications in atmosphere, the coherent and incoherent beam combining methods are investigated. In various turbulence levels, by comparing peak intensity and spot size parameters on the target, it was observed that in many applications, we can use incoherent combining methods instead of coherent. 1803 Special The stability of plasma surface wave on the quantum over-dense plasma Tohfeh Maryam Rajaee Layla Miraboutalebi Sedigheh Farhang matin Laleh Department of Physics Islamic Azad University, Tehran, Iran Department of Physics University of Qom, Qom, Iran Department of Physics Islamic Azad University, Tehran, Iran Department of Physics Islamic Azad University, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 745 748 29 06 2019 29 06 2019 In this paper, we study the nonlinear effects on the excitation of the surface waves on a plasma-vacuum interface. We suppose that the plasma medium is over-dense and shows quantum effects. Then, the conditions for the excitation of the surface waves on its interface with vacuum are investigated.  These surface waves are linearly weakly stable. The amplitude of the electric field of the surface wave are calculated both analytically and numerically. Also, it is obtained the conditions appropriate for the stability of the surface wave by investigating the corresponding dispersion relation. 1806 Special Entanglement of Two Photon Supercoherent States Motamedinasab Amin Afshar Davood Department of Physics, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran Department of Physics, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran 1 3 2019 25 ICOP & ICPET 2019 749 752 29 06 2019 29 06 2019 Two- photon supercoherent states are the eigenstates of square of the supersymmetric annihilation operator. In this paper, we investigate the entanglement of two classes of these states. To this end, orthogonal and normalized bosonic bases are introduced and supercoherent states would be transformed to the two-qubit ones with the use of them. It is observed that two-photon supercoherent states are entangled and their entanglement depends on the coherency parameter unlike the one-photon supercoherent states. The entanglement behavior of these two classes of states are different for large values of the coherency parameter. However, the maximum of fluctuation of entanglement occurs for both of these two classes in small values of coherency parameter. 1815 Special Application of SORS for detection TNT with PMMA covering Daryabi dobalotan Negin Ranjkesh Mohammad javad Mobasheri Abolhasan Daryani Seyed mohammadreza 1 3 2019 25 ICOP & ICPET 2019 753 756 29 06 2019 29 06 2019 Raman spectroscopy is the most common method for analysis of molecular component especially explosive materials. In traditional Raman spectroscopy method, usual the excitation and collection point are the same. This cause to overlap of cover layer and deep layer spectrum of inspection material. In this case, the covered material has been detected hardly. This problem has been solved by spatially offset Raman technique. In this research, the Raman spectrum of covered TNT by means of PMMA has been detected by this method. Our results show that a 3mm offset between excitation and collection points cause to detect some Raman peaks of PMMA from the Raman spectrum of the covered TNT. 1820 Special Simulation and performance improvement of CZTSe thin film solar cell with graphene transparent electrode Amiri Samaneh Dehghani Sajad Safaee Rosa school of Advanced Technologies, Shiraz University, Shiraz school of Advanced Technologies, Shiraz University, Shiraz school of Advanced Technologies, Shiraz University, Shiraz 1 3 2019 25 ICOP & ICPET 2019 757 760 30 06 2019 30 06 2019 In this paper we simulate the performance of CZTSe thin film solar cells with graphene/CdS/CZTSe/Al structure including recombination effects. Effects of bandgap energy, thickness and doping of absorber layer, thickness and doping of buffer layer on the performance of the solar cell is investigated. In the optimum structure with 10 nm graphene as window layer, 90 nm thick CdS with doping concentration 1017 cm-3 as buffer layer and CZTSe with 1.2 µm thickness and 1.12 ev bandgap energy  and doping concentration of 5×1016 cm-3 as absorber layer, Efficiency ղ=14.28%, Jsc=31 mA/cm2, Voc=0.6 V, F.F=76.38% was obtained. The efficiency is improved significantly in comparison to the common CZTSe solar cells. 1821 Special Two dimensional atom localization through the standing wave via probe field absorption Aghlmand alanagh Ali Sahraei Mostafa Bozorgzadeh Forough Research institute for applied physics and astronomy, University of Tabriz, Tabriz, Iran Research institute for applied physics and astronomy, University of Tabriz, Tabriz, Iran Research institute for applied physics and astronomy, University of Tabriz, Tabriz, Iran 1 3 2019 25 ICOP & ICPET 2019 761 764 30 06 2019 30 06 2019 Coherent interaction of an atom with a position-dependent standing-wave cavity field can impart position information of a moving atom through the cavity, leading to sub-wavelength atom localization. We show that the position of the atom along the standing-wave field is determined when the probe-field absorption is measured. By employing a four-level system, it is shown that the position of an atom inside the standing-wave field depends on detuning of the probe field and the position-dependent Rabi frequency of coupling field. 1822 Special Design of epsilon near zero metamaterial as a perfect plasmonic absorber and its application as slow and fast light Vafaei Mina Moradi Mahmood Bordbar Gholamhossein Department of Physics, Shiraz University, Shiraz Department of Physics, Shiraz University, Shiraz Department of Physics, Shiraz University, Shiraz 1 3 2019 25 ICOP & ICPET 2019 765 768 30 06 2019 30 06 2019 In this paper, epsilon near-zero (ENZ) metamaterial was designed and investigated based on metal-dielectric-metal structure. In this structure, the coupling of incident light with surface mode creates the perfect plasmonic absorber with different applications. On the other hand, it was also shown that the nanostructure is tunable due to the structural features changes. For this purpose, the absorption and reflection coefficient was calculated via numerical simulation. Then, the characteristics of the wave propagation are investigated as fast and slow light, based on group delay. The results show that the proposed metamaterial has epsilon near zero at 1730 nm wavelength and quality factor of 9. At the end, it was proved that using the gold metal, the fast and slow light coefficient can reach 1100 and 850 respectively. 1823 Special Anomalously low scattering of hyperbolic metamaterial based on Ag-dielectric nanotube in the broad range of visible spectrum Vafaei Mina Moradi Mahmood Bordbar Gholamhossein Department of Physics, Shiraz University, Shiraz Department of Physics, Shiraz University, Shiraz Department of Physics, Shiraz University, Shiraz 1 3 2019 25 ICOP & ICPET 2019 769 772 30 06 2019 30 06 2019 Metal-dielectric nanotubes represent a class of hyperbolic metamaterials with uniaxial permittivity tensor. In this study, the metal-dielectric nanotube as hyperbolic metamaterials was considered in the visible range and the light scattering was investigated when the transverse-electric polarized light normally incident to the side of the nanotube. Scattering efficiency was obtained as a function of the wavelength analytically in different conditions. The results show anomalously low scattering in the wide range of visible spectrum which includes the angular epsilon near zero wavelength. This anomalously low scattering has potential applications in invisibility. 1825 Special Numerical simulation of a Gaussian beam propagation inside a one-dimensional photonic crystal containing MoS2 monolayers Shiri Maysam Madani Amir Roshan entezar Samad Department of Laser and Optical Engineering, University of Bonab, Bonab Department of Laser and Optical Engineering, University of Bonab, Bonab Faculty of Physics, University of Tabriz, Tabriz 1 3 2019 25 ICOP & ICPET 2019 773 776 30 06 2019 30 06 2019 In this paper we have performed a numerical simulation which represents the propagation of a plane wave and a Gaussian beam at the outside and inside of a one-dimensional photonic crystal (1DPC) containing MoS2 layers. At first, the transmission spectrum of the 1DPC for the TE and TM polarized waves have been studied in the visible and UV regions using the transfer matrix method. The introduced PC is made of MoS2 monolayers which are alternatingly separated by dielectric slabs. Besides, the electric field amplitude of a plane wave at the PC has been plotted for wavelength which is selected from inside and the edge of the band gap. Finally, for better understanding of the electric field distribution inside the 1DPC, the numerical simulation of a Gaussian beam propagation have been performed using the Fourier transformation technique. 1826 Special Band gap structure of a one-dimensional quasiperiodic structure containing MoS2 mono-layers in terms of different orders of Fibonacci series Shiri Maisam Madani Amir Roshan entezar Samad Department of Laser and Optical Engineering, University of Bonab, Bonab Department of Laser and Optical Engineering, University of Bonab, Bonab Faculty of Physics, University of Tabriz, Tabriz 1 3 2019 25 ICOP & ICPET 2019 777 780 30 06 2019 30 06 2019 In this paper, the band gap structure and transmission properties of a one-dimensional Fibonacci quasiperiodic structure containing MoS2 monolayers have been studied. At first, the Fibonacci series and the arrangement of dielectric layers and MoS2 monolayers have been introduced. So, the transmission spectrum of the structure for 3, 4 and 5 orders of Fibonacci series have been studied for TE and TM polarizations, using the transfer matrix method. Finally, the photonic band gap structure of above-mentioned Fibonacci series orders has been investigated in the visible and UV region. The results show that, the presence of MoS2 causes to appearance of new gaps. Also, as increasing the orders of Fibonacci series, the gaps occurs at higher frequencies. 1827 Special Spectroscopy-based device for recording the intensity of reflection light from healthy skin and hemangioma lesions at 575 nm wavelengths and comparing two reflections to conclude a lesion condition and suggesting a dose for laser treatment. Taheri daghigh Mohammad reza Mohajerani Ezeddin Laser and Plasma Research Institute, Shahid Beheshti University, Tehran Laser and Plasma Research Institute, Shahid Beheshti University, Tehran 1 3 2019 25 ICOP & ICPET 2019 781 784 30 06 2019 30 06 2019 Hemangioma is a birthmark that appears in red in the form of blood vessels on the skin. Hemangiomas may prevent the normal functioning of the body parts, so treatment will be necessary. In this paper, the non-destructive method of reflection spectroscopy is used. Initially, by analyzing the effective parameters on the intensity of reflection light from the sample surface, such as the angle, intensity and ways of light irradiation in different modes, optimized the layout and offered a prototype of the device for testing, which is capable of showing the difference between the two parts of the healthy skin and the lesion in the intensity of reflection light, on a monitor. Ultimately, this machine was calibrated with spectroscopic results. 1652 Special Investigation of the effect of the gold-silver core-shell and aluminum-alumina structures on the optical properties of perovskite solar cell Sharifi Nafiseh Parsazadeh Mehdi 1 3 2019 25 ICOP & ICPET 2019 785 788 26 04 2019 26 04 2019 In this paper, the finite-difference-time-domain method (FDTD) was used. At first, for any of glass, transparency conductive oxide and titanium dioxide layers, the optimum thickness for maximum light transmission and the best thickness of active layer for more absorption was calculated for investigation of optical effects. After designing cell structure with optimum thickness, the absorption power was calculated in different distances in cell and the minimum absorption power occurred in 200 nm at the beginning of the active layer. The core-shell structure in the form of same-center-spheres by 50, 70, 66 and 70 nm radius for gold, silver, aluminum, and alumina, respectively, with center-to-center distance 142 nm was set in the solar cell active layer. In the following, optical properties were studied by set the core-shell structures in 200 nm at the beginning of the active layer. Light absorption in the solar cell with core-shell structure was more than the solar cell without core-shell structure. Amount of light absorption, electron-hole pair generation and short circuit current density for aluminum-alumina core-shell structure was more than the gold-silver core-shell structure.  1830 Special Diffraction-based rainbow and feasibility of the radial grating-based spectrometry Rasouli Seyfollah Hamzeh looei Saeid Hebri Davud Department of Physics, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, Iran. Department of Physics, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, Iran. Department of Physics, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, Iran. 1 3 2019 25 ICOP & ICPET 2019 789 792 30 06 2019 30 06 2019 In this work we theoretically and experimentally investigate the diffraction of white light beam from the radial amplitude gratings. Theoretical part of the work is resolved with the Fresnel–Kirchhoff integral. In the experimental part, a collimated wave-front of a white light beam emitting from a halogen lamp source is transmitted through a radial amplitude grating. We digitally record the diffraction pattern in various distances from the grating using a digital camera. The resulted diffraction pattern that is known "Talbot carpet at the transverse plane" has a uniform profile under propagation. The significant aspect of this pattern is the existence of a quite patternless dark area located around the optical axis and an intense rainbow-like ring in the vicinity of the patternless area. The rainbow color changes radially from the violet in the vicinity of the patternless area to red by increasing the radius. We call this phenomena "Diffraction-based rainbow". In addition, the transverse plane Talbot carpet consists colorful self-images of grating's spokes at the larger radii. The theoretical calculations and experimental results verify each other completely. The introduced diffraction-based rainbow can be utilized in determining the spectrum of the white source. 1836 Special Analysis OPO laser efficiency in the range of 400 to 2000 nm Shahnani Ehsun Yousefi Mohammad hasan Dehghan Mahdi Esfahan, Shahin Shahr, Malek Ashtar university Esfahan, Shahin Shahr, Malek Ashtar university Esfahan, Shahin Shahr, Malek Ashtar university 1 3 2019 25 ICOP & ICPET 2019 793 796 30 06 2019 30 06 2019 The purpose of this study is to design a tunable laser in the range of 400 to 2000 nm. The laser pump used in this oscillator is the third harmonic of a Nd-YAG laser with a wavelength of 355 nm and a nonlinear crystal used in the cavity of this oscillator is BBO. In order to produce tangible efficiency, the phase matching angles required for this oscillator with the help of software MATLAB is calculated.The effective factor in the efficiency of the optical parametric oscillator is the intensity ratio of the input pump beam to the pump threshold required to initiate the parametric process. With the help of numerical calculations, the optimal value for this factor is calculated and using that optimum length for the nonlinear crystal in the parametric oscillator is determined. The suitable length for BBO crystals in this research is 10 to 15 mm. 1661 Special Design and construction of a quasi-random laser based on Metallic Photonic Crystal Slab Nikkhah Mohsen Baradaran ghasemi Amirhossein Latifi Hamid Department of Physics, Shahid Beheshti University, Tehran, Iran Department of Physics, Shahid Beheshti University, Tehran, Iran Department of Physics, Shahid Beheshti University, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 797 800 07 06 2019 07 06 2019 In this paper, we proceed with design and construction of a quasi-random laser with coherent feedback made of a metallic photonic crystal slab as a cavity and Rhodamine 6G solution as a gain medium. The photonic crystal slab consists of the triangular gold nano beads arranged in a hexagonal lattice using nano-sphere lithography. Spectral emission intensity as well as the spectral width as a function of pumping energy were measured experimentally. Moreover, the physics behind the functional behavior of the structure is investigated through finite-element method. The results show that there is a considerable amount of scattering across the ordered structure which is important in the laser performance. 1662 Special Design and construction of a Plasmonic laser based on Metallic Photonic Crystal Slab Nikkhah Mohsen Baradaran ghasemi Amir hossein Latifi Hamid Department of Physics, Shahid Beheshti University, Tehran, Iran Department of Physics, Shahid Beheshti University, Tehran, Iran Department of Physics, Shahid Beheshti University, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 801 804 07 06 2019 07 06 2019 : In this paper, we set to report on design and construction of a plasmonic laser made of a metallic photonic crystal slab. Rhodamine 6G solution has been used as a gain medium. The photonic crystal slab consists of gold triangular nano-beads which are arranged in a hexagonal lattice using nano-sphere lithography. A Q-switched Nd:YAG second harmonic laser with 12ns pulsed width and 5Hz pulse repetition rate is used to optically pump the plasmonic laser. Emission spectrum and the spectral width as a function of pumping energy are measured through a UV-Vis spectrometer. Moreover, the physics behind the functional behavior of the structure is investigated through finite-element method. Even though the size of the nano-beads are small, the results show that there is an absorption cross section peak inside the PL spectrum of the gain medium which can excite localized surface plasmon resonances in the nano-beads leading to laser action. 1838 Special Influence of the orientation of the optical axis on Goos-Hanchen shift at the interface of a graphene-based hyperbolic metamaterial Shabani Negar Madani Amir Roshan entezar Samad Abdighale Reza Department of Laser and Optical Engineering, University of Bonab, Bonab Department of Laser and Optical Engineering, University of Bonab, Bonab Faculty of Physics, University of Tabriz, Tabriz Department of Laser and Optical Engineering, University of Bonab, Bonab 1 3 2019 25 ICOP & ICPET 2019 805 808 30 06 2019 30 06 2019 In this paper, the influence of the orientation of the graphene monolayers on Goos-Hanchen shift of a graphene-based hyperbolic metamaterial (HMM) slab has been studied. The investigation has been done at the interface of the slab and air, using the transfer matrix method. The structure contains a layer of glass as entrance medium, a layer of air and a HMM multilayer containing graphene-dielectric layers. This arrangement obtains the excitation of TM-polarized surface polaritons (SPs) at the terahertz frequency. The excitation of SPs results in the significant GH shift at the interface which is dependent on the orientation of graphene monolayers.   1839 Special Study of Goos-Hanchen shift in semi-infinite one-dimensional structure containing graphene-based hyperbolic metamaterial Shabani Negar Madani Amir Roshan entezar Samad Department of Laser and Optical Engineering, University of Bonab, Bonab Department of Laser and Optical Engineering, University of Bonab, Bonab Faculty of Physics, University of Tabriz, Tabriz 1 3 2019 25 ICOP & ICPET 2019 809 812 30 06 2019 30 06 2019 In this paper the Goos-Hanchen effect in semi-infinite one-dimensional medium containing graphene-based hyperbolic metamaterial has been investigated theoretically using transfer matrix method. The results show that the lateral shift would be increased noticeably by the excitation of the TM-polarized surface polaritons in the THz frequency region. The excitation of surface polaritons has been verified by plotting ATR curves for the structure. Finally, the results have been verified by numerical simulations.     1844 Special A Gravimeter Based on Optical Intensity ROC Gholinezhad Jalal Jafari diani Kian Abedi Kambiz Department of Electrical Engineering, Shahid Beheshti University, Tehran Department of Electrical Engineering, Shahid Beheshti University, Tehran Department of Electrical Engineering, Shahid Beheshti University, Tehran 1 3 2019 25 ICOP & ICPET 2019 813 816 30 06 2019 30 06 2019 Information about the earth’s crust can be revealed by the measuring of gravity; furthermore, gravimeters can be used in space science, the studying of planets, discovering of hydrogen sources, magma surveys, and geography. Low-cost, high-sensitivity, and low-size are critical needs in gravimetry. High sensitivity, low resonance frequency, low cost, ability for array production, and small size features make a wide applications of gravimeters to be commercial. In this paper, a new structure as gravimeter based on optical ROC and MEMS technology is introduced. The designed sensor has small size, easy release procedure, and low noise while an optical ROC is employed. In summary, a low bandwidth, high-sensitivity, and small MEMS-based Gravimeter is demonstrated, which this could open a way for MEMS gravimeters to be accurate and be commercially used. 1860 Special Identification of Absorption and Refractive Coefficient of Histidine by THz Spectroscopy Shahin zadeh Mohsen Sharif Seyed shayan Darbani Seyed mohammad reza Yahyaei Bahareh Eslami majd Abdollah Optics and Laser Science and Technology Research Center, Malek-Ashtar University of Technology, Shahin Shahr, Iran Optics and Laser Science and Technology Research Center, Malek-Ashtar University of Technology, Shahin Shahr, Iran Optics and Laser Science and Technology Research Center, Malek-Ashtar University of Technology, Shahin Shahr, Iran Optics and Laser Science and Technology Research Center, Malek-Ashtar University of Technology, Shahin Shahr, Iran Optics and Laser Science and Technology Research Center, Malek-Ashtar University of Technology, Shahin Shahr, Iran 1 3 2019 25 ICOP & ICPET 2019 817 820 02 07 2019 02 07 2019 In this research, have been used THz Time Domain Spectroscopy(THz-TDS) at reflection mode contain two dipole GaAs photoconductive antenna in order to generation and detection THz waves and optical instruments such as silicon lens and parabolic mirror. generated Terahertz pulses have subpicosecond pulse duration  and spectral range of 0.1-2 THz. Absorption and refractive coefficients of histidine were calculated about 45.2 cm-1 and 1.57 respectively. Ability of concealed  samples detection is one of the advantages of this method. 1916 Special Theoretical analysis of Ge/Si quantum dot infrared photodetector Gholipour Mohammad Fathi Davood Gordi armaki Mahdi 1 3 2019 25 ICOP & ICPET 2019 821 824 05 07 2019 05 07 2019 In the article, we have used an accurate model for theoretical studying of dark and illumination characteristics of Ge/Si quantum dot infrared photodetector. In our considerations it is assumed that both thermionic emission and field-assisted tunnelling mechanisms determine the dark current of quantum dot detector. Dependence of the QDIPs dark current to the temperature and voltage bias, and also the thermionic emission and field-assisted tunneling at various temperatures and biasing voltages are investigated. Our results predict that the dark current of Ge/Si quantum dot is smaller than other materials of Ⅲ-Ⅴ groups such as InAs/GaAs and as a result, detectivity in photodetectors can be improved. 1926 Special Generation of Bessel beam using phase mask based on liquid crystal Khoshsima Habib Panahi shalghoni Farzaneh Yeganeh Mohammad Research Institute for applied physics and astronomy, Tabriz University, Tabriz, Iran Research Institute for applied physics and astronomy, Tabriz University, Tabriz, Iran Research Institute for applied physics and astronomy, Tabriz University, Tabriz, Iran 1 3 2019 25 ICOP & ICPET 2019 825 828 06 07 2019 06 07 2019 Various methods have been developed for construction of the Bessel beam. One of the simplest methods is generating an annual distribution of light. In this paper, an experimental method for the production of Bessel beam using a lithographic mask based on azo methyl red-doped liquid crystal is presented. In order to obtain the best result, a 532nm laser was used to recording the pattern. According to observation, by applying the electric field to the liquid crystal cell for linearly polarized light, the Bessel beam was produced. 1934 Special Two-pulse laser design using the Master-Slave structure Babaei tooski Majid Maleki Abbas Ebadian Hasan Khalili Alireza Optic and laser science & technology research center, malek- Ashtar University of technology, Shahin share, Iran Optic and laser science & technology research center, malek- Ashtar University of technology, Shahin share, Iran Optic and laser science & technology research center, malek- Ashtar University of technology, Shahin share, Iran Optic and laser science & technology research center, malek- Ashtar University of technology, Shahin share, Iran 1 3 2019 25 ICOP & ICPET 2019 829 832 06 07 2019 06 07 2019 In this paper, the design of the two-pulse laser Nd: YAG is studied using the Master-Slave structure. In this design, two heads of laser as master and slave were used in the production of a two-pulse laser beam with a time delay of several microseconds to several milliseconds with a pulse repetition rate of 1 to 15 Hz and a pulse duration 8 nanoseconds. For the channeling of these two lasers, the polarization technique using a 90 degree rotator is used. The active medium in both lasers is pumped by a flash lamp. The conversion of electrical energy to optical energy in free running and Q-switches mods is 2.33 and 1.9 percent, respectively. The experimental results are compared with the results of the LASCAD simulation and a very high adaptation has been observed. 1834 Special Pulse compression up to fs scale using high-order soliton consideration in photonic crystal fiber Saeidi zadeh Reza Khorsandi Alireza Ghavami saboori Saeed Saeed Masoud Department of physics, University of Isfahan, Isfahan Department of physics, University of Isfahan, Isfahan Department of physics, University of Isfahan, Isfahan Department of physics, University of Isfahan, Isfahan 1 3 2019 25 ICOP & ICPET 2019 833 836 30 06 2019 30 06 2019 In this paper, pulse compression from picosecond range to femtosecond is numerically investigated. The method used for pulse compression is high-order soliton technique which can be obtained compressed pulse by selecting appropriate length of the fiber without any optical components. The optical fiber used in this paper is a hollow-core photonic crystal fiber filled with xenon, which loss is considered negligible. In this condition, we can obtain a pulse width of 10 fs from a pulse width of 1 ps.   1936 Special The effect of temperature gradient on stimulated Brillouin scattering in high power fiber amplifiers Esmaeili Mohammad reza Arabanian Atoosa sadat Masoudi Reza Laser and Plasma Research Institute, Shahid Beheshti University, Evin,Tehran Laser and Plasma Research Institute, Shahid Beheshti University, Evin,Tehran Laser and Plasma Research Institute, Shahid Beheshti University, Evin,Tehran 1 3 2019 25 ICOP & ICPET 2019 837 840 06 07 2019 06 07 2019 Suppression the power of stimulated Brillouin scattering is one of the key challenges in high power fiber amplifiers. In this paper, by solving the coupled equations of pump, signal, and stimulated Brillouin (Stokes) powers for describing their interactions, the dependence of the stimulated Brillouin scattering (SBS) power and output signal power on the temperature gradient in a ytterbium based fiber amplifier has been shown. Here, the effect of the temperature gradient on the SBS power are investigated by changing the two parameters of the heat convective coefficient and the cladding diameter. The calculation results show that these two control parameters are the proper means for significantly reducing the SBS power in the high power fiber amplifier. 1671 Special Fabrication of a random laser based on a tape and rhodamine 6G solution Ghasempur ardakani A Rafieipour Peymaneh Department of Physics, College of Science, Shiraz University, Shiraz, Iran Department of Physics, College of Science, Shiraz University, Shiraz, Iran 1 3 2019 25 ICOP & ICPET 2019 841 844 07 06 2019 07 06 2019 In this paper, a random laser is fabricated based on a tape as the scattering medium and rhodamine 6G solution as the gain medium. We experimentally investigate the random lasing emission from this sample. Low cost and availability of the tape causes this material to be a good candidate for fabrication of random lasers. Up to our knowledge, the fabrication of a random laser based on the tape is reported in this paper, for the first time. Holes and bumps which are existed on the surface of the tape lead to the multi-scattering of light and provide the essential optical feedback for random lasing emission. Here, optical gain is provided by rhodamine 6G solution via stimulated emission process. Experimental results demonstrate the random lasing emission from the sample. Also, we measure its threshold pump energy. In addition, the emitted wavelength is red shifted by increasing the pump energy. This effect can be applied for tuning the random lasing emission. 1672 Special Fabrication of a random laser based on carbon nitride particles as the scattering centers Ghasempur ardakani Abbas Rafieipour Peymaneh Nami ana Seyedeh fatemeh Tashkhorian Javad Department of Physics, College of Science, Shiraz University, Shiraz, Iran Department of Physics, College of Science, Shiraz University, Shiraz, Iran Department of Chemistry, College of Science, Shiraz University, Shiraz, Iran Department of Chemistry, College of Science, Shiraz University, Shiraz, Iran 1 3 2019 25 ICOP & ICPET 2019 845 848 07 06 2019 07 06 2019 In this paper, a random laser is fabricated based on carbon nitride particles as the scattering centers. We investigate experimentally the random lasing emission from the fabricated sample. Up to our knowledge, fabrication of random lasers based on carbon nitride particles has not yet been reported. We use rhodamine 6G solution as the gain medium. Optical gain is provided by rhodamine 6G solution via stimulated emission process. Essential optical feedback for random lasing emission is also provided by multiple light scattering from carbon nitride particles. Experimental results demonstrate the random lasing emission from the fabricated sample. We measure the threshold pump energy of the fabricated random laser and show that the presence of carbon nitride particles is essential for providing optical feedback and random lasing emission. 1659 Special Fabrication of two-dimensional plasmonic bio-sensor as detector of Laser stimulation of mouse neural cell Saeidifard Sajedeh Sohrabi Foozieh Ghazimoradi Mohammad hossein Hamidi Seyedeh mehri Farivar Shirin Ansari Mohammad ali Shahid Beheshti University, Tehran, Iran Shahid Beheshti University, Tehran, Iran Shahid Beheshti University, Tehran, Iran Shahid Beheshti University, Tehran, Iran Shahid Beheshti University, Tehran, Iran Shahid Beheshti University, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 849 852 07 06 2019 07 06 2019 Advances in laser diode technology have allowed infrared nerve stimulation. In this paper, we investigated the effect of laser stimulation on Herpg Hodode cell (end of the intestine neural cell) in a near-infrared immune region (1450 nm) which has been cultured on a 2-D plasmonic nano grating template. For this purpose, a plasmonic structure consisting of gold onto a two-dimensional nano grating was prepared by thermal deposition method and after the culture of the desired neuron, the spectroscopy of the samples has been done under different polarizations, given angle, constant duration time of 5 ms and frequency ranges 3, 5 and 7 Hz.  At the end, the effect of the pulsed laser has been investigated on the neural cell in various frequency conditions and reflection diagram in term of wavelength has been plotted. 1666 Special A low cost and novel design for generating electromagnetically induced reflectance using metamaterials Askari Mahdi Physics Department, Faculty of Sciences, Salman Farsi University of Kazerun, Kazerun. 1 3 2019 25 ICOP & ICPET 2019 853 856 07 06 2019 07 06 2019 In this paper we have designed a new metamaterial structure representing electromagnetically induced reflectance in which instead of using holes in metallic slabs, which has been the case in all introduced structures so far, two short wires with different lengths and two long wires have been used. The structure is found to have a large group index which makes it a good candidate for slow light applications. The limited use of metals, especially at terahertz frequencies in which gold and silver are usually used, can open up a new door to fabricating low cost metamaterials. 1673 Special Optical Phase Transition in Janes-Cummings Model with Counter Rotating Wave Samimi Saheb Golshan Mohammad mahdi Physics Department, Science College, Shiraz University, Shiraz, Iran Physics Department, Science College, Shiraz University, Shiraz, Iran 1 3 2019 25 ICOP & ICPET 2019 857 860 07 06 2019 07 06 2019 In this paper it is shown that there is an optical phase transition in the systems of two level atoms and photons, with large detuning and under counter-rotating wave approximation. Our calculations show that such system, even under this approximation have two independent optical phases, the well known  normal and super-radiant ones. In the normal phase, the ground state of the total Hamiltonian, with a large detuning, is a state for which the mean photon number is zero. On the other hand, when   the atom-photon coupling constant exceeds a critical value, the photon mean number is nonzero when the system is in the ground state, and the system makes a transition to the super-radiant phase. We also show this is a second order phase transition. 1675 Special Investigating the Plasmonic Photocatalystic Activity of Titania Aerogel in the Presence of Gold and Gold/Silver Nanoparticles Sadrieyeh Sima Malekfar Rasoul Atomic & Molecular Physics, Department of Physics, Faculty of Basic Science, Tarbiat Modares University, Tehran, P.O. Box 14115-175, I.R. Iran Atomic & Molecular Physics, Department of Physics, Faculty of Basic Science, Tarbiat Modares University, Tehran, P.O. Box 14115-175, I.R. Iran 1 3 2019 25 ICOP & ICPET 2019 861 864 07 06 2019 07 06 2019 Titania- metal nanoparticle composite aerogel simultaneously benefits from unique morphological characteristics of aerogel, intrinsic properties of titania and plasmonic effects of metal nanoparticles. Therefore these nanocomposites are one of the best candidates in plasmonic photocatalystic applications. In this research by loading titania aerogel via immersion method with gold nanoparticles and gold and silver nanoparticles (simultaneous existence) two different nanocomposites were synthesized and their photocatalystic activity was investigated through photodegradation of salicylic acid (test molecule) by means of UV-Vis spectroscopy. The obtained results showed that the presence of Au increases the photocatalystic efficiency of titania aerogel and furthermore the simultaneous existence of Au & Ag also improves the activity of the nanocomposite. 1677 Special Fluorescence Decay Rate Enhancement With High Quantum Efficiency Using Multilayer Hyperbolic Metamaterials Mahmoodi Maryam Ardekani Maryam Gazmeh Meisam Tavassoli Seyed hasan Iran, Tehran, Velenjak, Shahid Beheshti University, Laser and Plasma Research Institute Iran, Tehran, Velenjak, Shahid Beheshti University, Laser and Plasma Research Institute Iran, Tehran, Velenjak, Shahid Beheshti University, Laser and Plasma Research Institute Iran, Tehran, Velenjak, Shahid Beheshti University, Laser and Plasma Research Institute 1 3 2019 25 ICOP & ICPET 2019 865 868 07 06 2019 07 06 2019 Decay rate enhancement of quantum emitters using nanostructures have been widely studied in the last decades, thanks to the development of science and technology of light-matter interaction in nanoscales. Hyperbolic metamaterials (HMMs) as artificial nanostructures providing high photonic density of states (PDOS) are highly promising in this regard. In the present paper, we investigate PDOS of a hyperbolic metamaterial component consisting of 6 alternating gold-alumina layers, using FDTD simulation and the Green's function. Non-radiative and radiative (fluorescence) spontaneous decay rate enhancement of a quantum emitter nearby the structure is calculated. The results indicate the fluorescence enhancement of a factor of 10 having quantum efficiency of about 50 percent. 1681 Special System of short pulse flashlamps for optical pumping of a laser-induced plasma Tahsildaran Fatemeh sadat Farahbod Amir hossein Malekfar Rasoul Atomic and Molecular Physics Group, Department of Physics, Tarbiat Modares University, Tehran Department of Plasma and Nuclear Fusion, Nuclear Institute of Science and Technology, Tehran Atomic and Molecular Physics Group, Department of Physics, Tarbiat Modares University, Tehran 1 3 2019 25 ICOP & ICPET 2019 869 872 07 06 2019 07 06 2019 Optical pumping of the laser-induced plasma of metals at a low-pressure atmosphere requires high power optical sources in the blue and ultra-violet region of spectrum. To achieve the highest optical pumping at the laser beam position on the target surface, a special optical configuration and discharge circuit are designed and applied to trigger two and four, 20 mm arc length, xenon flash lamps in series. Moreover, the behavior of discharge circuit and its capability to excite the flash lamps at a low pressure of air and neon atmosphere (0.1-100 mbar) is investigated. The experimental findings show that the pulse-width of the discharge current for 0.5 J total charging energy is less than 3.5 microseconds. In addition, the jitter among the peaks of discharge current and the laser pulse is less than 1 microseconds that is more than the adequate to pump effectively plasma at the proper time. 1765 Special Optical performance of an organic solar cell based on PEDOT: PSS/CuPC/C60 and PEDOT: PSS/ ZnPC/C60 Ghazi Mahnaz Shokri Aliasghar Department of physics, Payam Noor University (PNU), P.O.Box 19395-3697, Tehran, Iran Department of physics, Payam Noor University (PNU), P.O.Box 19395-3697, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 873 876 27 06 2019 27 06 2019 In this paper, using optical model of Gpvdm simulator software based on the transfer matrix, we have investigated the optical performance of organic solar cell based on PEDOT: PSS/CuPC/C60 and PEDOT:PSS/ZnPC/C60. The active layer thickness dependence of the density and photon absorption, short circuit current density, the feedback-voltage, the efficiency of the power conversion and filling factor are calculated. The results indicate that the measured values ​​of all the parameters mentioned above for the optimum thickness of 30 nm of the active layer of CuPC are greater than the optimal thickness of 15 nm of the active layer ZnPC have been. Our results may have important applications for building blocks in the organic solar cell and optoelectronic devices 1773 Special Plasmonic Production of Short-wavelength Laser Light Using a Coated-Gold Bow-tie Nanostructure placed on Substrate Solaimani Mohammad Mohebbi Masoud Forouzeshfard Mohammad reza Department of Physics, Vali-e-Asr University of Rafsanjan, Rafsanjan Department of Physics, Vali-e-Asr University of Rafsanjan, Rafsanjan Department of Physics, Vali-e-Asr University of Rafsanjan, Rafsanjan 1 3 2019 25 ICOP & ICPET 2019 877 880 28 06 2019 28 06 2019 We investigate high-order harmonic generation resulting from the interaction of Hydrogen gases with Enhanced electric field based on Localized surface plasmon. These fields produced when a coated-gold bow-tie nanostructure on a sublayer is illuminated by a short planner wave of long wavelength. The simulation results show that by simultaneously applying a thin insulated coating around the nanostructure and substrate, the field strength in the nanostructure gap is such that the higher order harmonic generation can be achieved. By this offer can be prevented nanostructure from destruction, and results that one can be apply to produce harmonics for many times. 1725 Special Design of Linear Fresnel Reflector as A Solar Thermal Generator Borzouei Hadi Engineering Faculty, Sabzevar university of new technology, Iran, 9615918339 1 3 2019 25 ICOP & ICPET 2019 881 884 16 06 2019 16 06 2019 The parabolic linear reflectors are the common concentrator for solar thermal generators. The linear Fresnel reflectors are the best replacement for linear parabolic concentrators. In this study the small scale of linear Fresnel reflectors with the flat mirror designed. The numerical aperture criteria assisted to make lockup table. In this simulation, the 37 discrete mirror of 10 cm width collects the 68% of received optical power. The half width of overall system is 2.4 m and the system field of view is 65 degrees. Replacement of flat mirror by concave mirror of 5 m radiuses has increased the intensity on absorber pipe by 2.5 times. 1698 Special Thin Disk’s Radius of Curvature Effects on Diffraction Loss in Axicon- Based Resonators Aghbolaghi Reza Sahebghoran charehjaloo Habib Aghazadeh Mostafa Photonics group, Basic science department, Bonab University, Bonab highway, Bonab Photonics group, Basic science department, Bonab University, Bonab highway, Bonab Photonics group, Basic science department, Bonab University, Bonab highway, Bonab 1 3 2019 25 ICOP & ICPET 2019 885 888 08 06 2019 08 06 2019 In this paper, The amplitude profile at the output coupler mirror and at the active medium, the spot size and the loss diffraction have been investigated in an axicon-based thin disk resonator by considering some radius of curvature for the thin disk and the output coupler. The results show the diffraction loss, the spot size and the amplitude profile can be controlled by selecting of the appropriate radius of curvature for the thin disk and causing improvement of output beam 1699 Special High Harmonic Generation from H_2 〖He〗^(2+) Molecules in Plasmonic Field Aghbolaghi Reza Majidi Soheila Aghazadeh Mostafa Department of Engineering Optic and Laser, university of Bonab Department of Engineering Optic and Laser, university of Bonab Department of Engineering Optic and Laser, university of Bonab 1 3 2019 25 ICOP & ICPET 2019 889 892 08 06 2019 08 06 2019 In this article, in order to investigate the effect of the plasmonic field on the cut off position in high harmonic spectrum, laser field is incident on  molecules and the gold nanoparticles. Then, high harmonic spectrum obtained from interaction between the plasmonic fields with molecules is calculated and compared with the hydrogen and helium atoms. Our results show that the cut off  molecules is more than two other atoms, so it is more efficient to use  molecules than two other atoms to produce higher harmonics. 1712 Special A BioSensor based on a Vertical coupled Tubular Resonator in subwavelength waveguide Akbari Ladan Abedi Kambiz Jafari Kian Department of Electrical Engineering, Shahid Beheshti University Department of Electrical Engineering, Shahid Beheshti University Department of Electrical Engineering, Shahid Beheshti University 1 3 2019 25 ICOP & ICPET 2019 893 896 13 06 2019 13 06 2019 In this paper, the performance of the coupler optic resonator is analyzed in a vertical scheme with a subwavelength slot waveguide for applications of bio-sensing. Due to a subwavelength-very thin wall and a several hundred nanometer gap between the resonator and the waveguide, which is an outstanding feature of this structure, a significant optical coupling with an extinction ratio of 111 dB and in bio-sensing application, the sensitivity is 463 nm / RIU, the resolution is 10-4­ and FOM is 652.2. By considering the effect of varying the gap between the waveguide and the resonator, it is observed that the highest sensitivity and the maximum shift in the extinction ratio of 11.74 dB at 100 nm are obtained. The proposed structure can be used for integrated lab-on-chip photonic applications. 1713 Special Molecular diagnosis of plasma phenylalanine in neonates with phenylketonuria disease using biological sensors based on Surface-Enhanced Raman Spectroscopy (SERS) Sharifi Nafiseh Eskandari Vahid Laser and photonic group, Department Physics, University of Kashan, Kashan Nanoscience and nanotechnology re1search center, University of Kashan, Kashan 1 3 2019 25 ICOP & ICPET 2019 897 900 13 06 2019 13 06 2019 In this study, silver nanoparticles were chemically synthesized and deposited on glass substrates using a reducing agent of sucrose, at 50°C. Different characterizations including atomic force microscopy (AFM), field emission scanning electron microscopy (FESEM), and Raman spectroscopy were obtained to study silvery substrates. Then, the silvery substrates were used as active SERS substrates to detect molecular vibrations of phenylalanine amino acid up to the concentration of 10-7 M. The importance of phenylalanine amino acid detection is due to the early diagnosis of phenylketonuria in neonates. There for the blood plasma of a healthy neonate and a neonate with phenylketonuria disease were engraved on active SERS substrates. they enhance the intensity of molecular vibration peaks of phenylalanine amino acid of two kinds of blood plasmas The intensities of molecular vibrations of unhealthy plasma are stronger than healthy plasma due to the higher concentrations of phenylalanine amino acid, which is the sign of Phenylketonuria disease. 1933 Special Imaging of blood cells using nonlinear microscopy of third harmonic generation Hosseini Hossein Mozdoor dashtabi Mahdi Deljoor Mohammad Masoudi Reza 1 3 2019 25 ICOP & ICPET 2019 901 904 06 07 2019 06 07 2019 The invention of femtosecond lasers provided the intensity required for nonlinear processes, such as third harmonic generation which eliminates some of the microscopic challenges, such as imaging thick and high dispersion specimens.in this paper, use of a femtosecond optical source for the construction of a nonlinear microscope based on third harmonic generation, and study the advantages of this method. Also by imaging blood cells, label free imaging of biological specimens using a third-harmonic generation nonlinear microscope are evaluated. 1724 Special Astigmatism and Coma aberration Correction in Raman array spectrometer Borzouei Hadi Engineering Faculty, Sabzevar university of new technology, Iran, 9615918339 1 3 2019 25 ICOP & ICPET 2019 905 908 16 06 2019 16 06 2019 h_borzouei@yahoo.com The very weak signal of Raman scattering needs the optimized array spectrometer. The Astigmatism and Coma aberrations are the main problem in received energy and wavelength resolution. An optimized array spectrometer in range of 780 to 1100 nm with F/number of 4.5 has been designed. A cylindrical lens added to correction of Astigmatism aberration. The optimum point of object and image respect to mirrors calculated. This special design minimizes the Coma aberration. The 600 line per millimeter grating has been used and the resolution of 0.25 nm has achieved. 1731 Special Investigation of Anderson localization phenomena in propagation of surface plasmon waves in graphene surface Sani Milad Safarzadeh Fatemeh Hasani farzad Mahmood Hatef Ali Department of physics, University of shiraz, Shiraz, Iran Department of physics, University of shiraz, Shiraz, Iran Department of physics, University of shiraz, Shiraz, Iran Nipissing Computational physics laboratory (NCPL), Department of computer science and mathematics, nipissing university-north bay, canada 1 3 2019 25 ICOP & ICPET 2019 909 912 16 06 2019 16 06 2019 graphene is a 2d structure with unique properties. High carrier mobility in graphene causes to graphene plasmons have low loss and considerable confinement to the surface. This suites graphene for plasmonic applications. In this article a structure consists of silicon grating and graphene were investigated. Results showing that with creating disorder in the proposed structure, we can create new localized plasmon modes that have comparable intensity than ordered structure modes. This makes such a structure as a suitable candidate for resonators and in general optoelectronic devices. 1745 Special Toffoli (CCNOT) reversible suggested gate based on Degenerate Four Wave Mixing method Abolhasani Ashkan Mohajerani Ezeddin Navi Keivan Department of Photonic, Science and Research branch, Islamic Azad University, Tehran, Iran Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran Faculty of Computer Science and Engineering, Shahid Beheshti University, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 913 916 18 06 2019 18 06 2019 Along with the increasing advances of computing science in the current century, we need quick information processing more than ever. By improving photonic devices and their scaling down, integrated photonic circuits have gradually substituted their electronic counterparts due to their much faster optical processing capabilities than that of electronic integrated circuits. Fully optical computers followed by quantum computers are consequently passing through experimental phase and are being commercialized. In this proposed research, implementing fully optical Toffoli reversible gate (CCNOT) is presented which is on the basis of using PMMA polymeric medium contaminated with polymeric dye DR1 non-linear response in Degenerate Four Wave Mixing test and then matching the results against quantum computer logic and the definition of photonic qubits based on polarization.   1751 Special Application of Raman spectroscopy in examination of black pen inks for authentication of documents Arefi Abbas Tavassoli Seyed hasan Laser and Plasma Research Institute, Shahid Beheshti University, G. C., Evin, Tehran Laser and Plasma Research Institute, Shahid Beheshti University, G. C., Evin, Tehran 1 3 2019 25 ICOP & ICPET 2019 917 920 18 06 2019 18 06 2019 Forensic examinations of questioned documents routinely involve physical and chemical analysis of inks. Raman spectroscopy is a very attractive technique for ink analysis. However, this technique has some limitations including low sensitivity and the overwhelming phenomenon of fluorescence. In this research, this problem has been solved for a portion of the spectrum by baseline correction. This paper aims to demonstrate the potential of Raman-based techniques for examination of some black inks. For this purpose, at first, the repeatability of black ballpoint pen inks spectra have been examined and then the inks have been discriminated from each other. The results show that this technique is able to distinguish all five samples. 1758 Special An Investigation of Nonlinear Refractive Index of Blood Glucose and Iron Ferrene Compounds Using the Z-scan Technique Shahini Fatemeh Zakeri Abdolnaser Ebrahimi Mojtaba Dept. of Physics, College of Science, Shiraz University, Shiraz, Iran Dept. of Physics, College of Science, Shiraz University, Shiraz, Iran Dept. of Physics, College of Science, Shiraz University, Shiraz, Iran 1 3 2019 25 ICOP & ICPET 2019 921 924 18 06 2019 18 06 2019 We have investigated nonlinear optical properties of blood serum using a continuous wave laser at a wavelength of 532 nm. Utilizing open and close aperture of a Z-scan technique enables a measurement of the nonlinear refractive index of blood serum . Our results show that  increases because of increasing of the glucose content when the iron content is constant. We measured the refractive index of this serum using Sheik-Bahae’s and Z-scan models. 1811 Special Electric Field Enhancement Using a Chain Array of Plasmonic Nanoparticles Bahmani Sadegh Azadi namin Farhad Electrical Engineering Department, Amirkabir University of Technology, Tehran, Iran Electrical Engineering Department, Amirkabir University of Technology, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 925 928 29 06 2019 29 06 2019 One of the methods of electric field enhancement in nanometer scales is using the plasmonic nanoparticles arrays. In this paper, to enhance the electric field, using an optimization method based on the genetic algorithm, we found a chain-like structure of nanoparticles, which can increase the electric field intensity up to 30 times. Using these chain arrays, we introduce some periodic structures with low sensitivity to polarization of electric field. These structures are able to enhance the field in many points of the plane and can cover the whole plane.  1799 Special Investigation of vertical aerosol profile with simultaneous use of Depolarized Lidar, In-situ measurements and satellite data in Tehran, Iran. Panahifar Hossein Mohammadi khalesi fard Hamidreza Department of Physics, Institute for Advanced Studies in Basic Sciences (IASBS) Department of Physics, Institute for Advanced Studies in Basic Sciences (IASBS) 1 3 2019 25 ICOP & ICPET 2019 929 932 29 06 2019 29 06 2019 Continuous vertically resolved aerosol measurements using Lidar were performed in Tehran, Iran. Lidar results has been used in combination with particulate matter monitoring, Synoptic meteorological observation as well as satellite-based measurements. The aerosol types are classified by their optical depolarization. The volume linear particle depolarization ratio (VLDR) at 532 nm lies mostly between ( ). These results show that mostly urban pollution mixed with particles are present in the Tehran atmosphere. During dust events, the VLDR at 532 nm lies between ( ). 1801 Special Single Wall Carbon Nanotube Synthesis by laser ablation method Kazemi zadeh Fatemeh Malekfar Rasoul Tarbiat Modares University Tarbiat Modares University 1 3 2019 25 ICOP & ICPET 2019 933 936 29 06 2019 29 06 2019 Single wall carbon nanotubes were synthesized using laser ablation method in vacuum. A high power Ce:Nd:YAG laser was used for this goal. FESEM microscopy showed the formation of high pure carbon nanotubes. Moreover, the small amount of D to G intensity in Raman spectrum and the existence of RBM mode show the formation of semiconductor SWNTs. The diameter of SWNTs was calculated using the wavenumber of RBM mode in Raman spectrum. The results showed that SWNTs are 1/3 nm in diameter that TEM microscopy conforms it. 1817 Special Modeling of Photoacoustic Method for Detection of Melanoma Cancer by Monte Carlo Method Rahmatpour Ahmad Ansari Mohammad ali The faculty of Laser and Plasma Research Institute, Shahid Beheshti University, Tehran. The faculty of Laser and Plasma Research Institute, Shahid Beheshti University, Tehran. 1 3 2019 25 ICOP & ICPET 2019 937 940 29 06 2019 29 06 2019 Melanoma is a skin cancer that is prevalent in tropical countries such as Iran. An invasive sampling method is used to diagnose the disease. During the sampling process and afterwards the patient suffers from pain and causes the beauty of the skin to disappear. To do this, using non-invasive methods is important. In recent years, photoacoustic, non-invasive and non-ionizing methods have been used in dermatological diseases. For this reason, in this paper, we study the production of photocoacoustic pulse from a malignant mucus within the flat skin phantom. For this purpose, the Monte Carlo algorithm is used to model the absorption of laser light (532 nm) in the skin, and then the acoustic wave equation derived from absorbing laser light is simulated using the Green's function of solving and pressure on the skin. The results show that the photoacoustic method is capable of detecting the thickness and depth of the mole. 1818 Special Simulation of the effect of graphene layers on resonance wavelength and sweep of the refractive index parameter to observe the process of changing in transmission from graphene ribbon Hosseini Maryam Fallah Hamidreza Haji mahmoodzadeh Morteza Malekmohammad Mohammad Department of physics, University of Isfahan Department of physics, University of Isfahan Department of physics, University of Isfahan Department of physics, University of Isfahan 1 3 2019 25 ICOP & ICPET 2019 941 944 29 06 2019 29 06 2019 An array of graphene ribbon has been studied and simulated in the mid-infrared spectrum. It was observed that change the wavelength of resonance with slight changes in the concentration of doping of graphene ribbons can be achieved. The simulation shows that by modulating the Fermi-energy between 0.2 ev and 0.25 ev for the arrangement of the 4-layer graphene ribbon, it could be 0.94   in the shift of the wavelength, compared to 0.85 for the state single layer. These outlook provide the way for graphene-based ultra-fast devices for infrared and terahertz applications.  1924 Special Investigation and correction of thermal lensing during amplification of passively Q switched micro lasers with two stages flash lamp Nd:YAG amplifier Kashi Parisa Jandaghi Maryam Nahvifard Elahe Salimian rizi Saeid Department of Physics, Imam Khomeini international university, Qazvin Iranian National Center for Laser Science and Technology, Tehran Department of Physics, Imam Khomeini international university, Qazvin Iranian National Center for Laser Science and Technology, Tehran 1 3 2019 25 ICOP & ICPET 2019 945 948 06 07 2019 06 07 2019 In this paper the effect of thermal lensing during amplifying of passively Q switched micro lasers by two flash lamp side pumped NdYAG is reported. The micro laser generates pulses of 8-μJ energy and 800-ps duration at 2-kHz repetition rate with beam quality factor, M2<1.3. The micro laser pulse was amplified up to 12-mJ energy and 15MW peak power at 1-10 Hz repetition rate in a two-stage flash-pumped Nd:YAG amplifier. During amplification, the most imortant signal distortion parameter will occur and cause to reduce the intensity of the beam. In addition, presented experimental results have a very good concurrence with theoretical data. 1837 Special Mach-Zehnder Interferometer based All-Optical Photonic Crystal Switch Barahimi Behdad Danaei Mohammad Faculty of ECE, Tarbiat Modares University, Tehran. Faculty of ECE, Semnan University, Semnan. 1 3 2019 25 ICOP & ICPET 2019 949 952 30 06 2019 30 06 2019 Third-order nonlinear Photonic Crystals are the most prominent all-optical switching devices. In this paper by implementing a MZI, slow light structure and making use of similar Kerr effect behavior, we have proposed an all-optical switch, capable of guiding light up to a certain intensity. The switch ceases on-state as further increase of intensity. Changing the device dimensions adjusts on/ off intensity threshold, making it possible for the designers to set dimensions and switching threshold of the switch according to the system configuration and demands. Here we would get assured of the practicality of our design. 1847 Special Simulation of propagation of Terahertz pulse in a collision cold plasma slab with FDTD method Delshad hemmatabadi Hossein Fallah Reza Khorashadizadeh Seyed mohammad Niknam Alireza Department of physics, University of Birjand, Birjand, Iran Department of physics, University of Birjand, Birjand, Iran Department of physics, University of Birjand, Birjand, Iran Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 953 956 30 06 2019 30 06 2019 In this paper the propagation of terahertz pulse in a collision cold plasma slab is studied. By using the Maxwell's equations and dielectric constant of a collision cold plasma, the relation for the electric displacement vector and polarization is calculated. Transmission and reflection of terahertz wave in a plasma slab is simulated with one-dimensional Finite Difference Time Domain (FTDT) method and bilinear transform (BT) model. The results show that the characteristics of the plasma slab and the pulse parameters affect the shape and amplitude of the transmission and reflection wave. 1852 Special Birefringence Effects on the Performance of the Devices Based on Optical Phase Modulator Inside a Sagnac Interferometer Hosseini Seyed esmaeil Ghashghaei Mohammad reza School of Electrical and Computer Engineering, Shiraz University, Shiraz, Iran School of Electrical and Computer Engineering, Shiraz University, Shiraz, Iran 1 3 2019 25 ICOP & ICPET 2019 957 960 02 07 2019 02 07 2019 Recently, optical phase modulator (PM) inside a Sagnac interferometer (SI) has many applications in electro-optic and microwave photonic systems. Propagating lights inside the SI are combined coherently at its output, so their polarizations must be maintained. Therefore, polarization-maintaining optical fiber (PMF) are used in the SI. Since PMFs have birefringence, propagating lights with different polarizations, experience different phase delay inside the SI. In this paper, the effects of birefringence on the performance of an SI containing a PM, is theoretically investigated using the Jones matrix method. Closed form expressions for its transmission and reflection coefficients are derived. It is shown that these coefficients can be tuned by adjusting the birefringence parameter of the PMF and parameters of the PM. 1703 Special Random laser of rhodamine 6G dye solution embedded with ZnO microstructures Hosseini Mandana sadat Yazdani Elnaz Irani Elnaz Bayat Amir Bazire Sirous Mehradnia Fariba Sajad Batool Department of physics, Tarbiat modares University of Tehran Department of physics, Tarbiat modares University of Tehran Department of physics, Tarbiat modares University of Tehran Department of physics, Tarbiat modares University of Tehran Department of physics, Tarbiat modares University of Tehran Department of physics, Alzahra University of Tehran Department of physics, Alzahra University of Tehran 1 3 2019 25 ICOP & ICPET 2019 961 964 11 06 2019 11 06 2019 In this study, Zinc oxide microstructures with high porosity and surface area to volume ratio in order to the light localization has been selected and synthesized. Characterization measurements; such as SEM, XRD and EDAX has been carried out on the structures. Random laser emission with coherence feedback from rhodamine6G solution embedded ZnO microstructures and effect of the pump energy on spectrum emission variation have been investigated. 1878 Special Analysis of Resonant Wavelength in Dielectric Coated Nanorod Metallic Antennas Talafi noghani Mahmood Aerospace Research Institute (Ministry of Science, Research and Technology), Tehran, Iran. 1 3 2019 25 ICOP & ICPET 2019 965 968 02 07 2019 02 07 2019 It is known that the resonant length of a metallic dipole nanorod antenna is typically very much shorter than half a wavelength. Presence of a dielectric coating on the metallic core, intensifies this effect. The coating might be undesired (e.g. caused by metal corrosion) or desired (e.g. to protect metal from damage or corrosion). In this paper, an analytical method is presented to calculate the resonant (or effective) wavelength (λeff) of dielectric coated metallic nanorod antennas. Variation of λeff due to change in material properties and thicknesses is investigated. In order to validate the results, they are compared with those from full wave simulations approving the accuracy of the proposed method. 1923 Special Measuring phase profile of optical channel waveguide by using in-line holographic microscopy Kazemi rad Cyrus Abdollahpour Daryoush Department of Physics, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan Department of Physics, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 1 3 2019 25 ICOP & ICPET 2019 969 972 06 07 2019 06 07 2019 Phase reconstruction of a complex light field plays an important role in optics and microscopy. Here we introduce an iterative phase retrieval approach; this method is based on a simple configuration and is easy to work in relation to other holographic approaches and have a considerable sensitivity to phase reconstruction from microscopy objects. We implement it to measure phase profile of titanium diffused channel waveguide on the Lithium Niobate substrate, which is a uniaxial crystal, in  and  mode. Our results show the channel waveguide has different phase profile and consequently different refractive indexes in orthogonal polarization directions. 1887 Special Investigation of self-focusing of Gaussian laser beam with circular polarization in magnetized plasma Khuniki Reza Fallah Reza Khorashanizadeh Seyed mohammad Niknam Alireza Department of physics, University of Birjand, Birjand, Iran Department of physics, University of Birjand, Birjand, Iran Department of physics, University of Birjand, Birjand, Iran Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 973 976 03 07 2019 03 07 2019 In this paper, the phenomenon of self-focusing of Gaussian laser beam with right and left circular polarization propagating in a magnetized plasma has been investigated in a weakly relativistic regime. For this purpose, using the Maxwell equations and the plasma-governing equations, a nonlinear equation describing changes in the amplitude of the beam is obtained. Then, the effect of external magnetic field on the self-focusing of the beam with the right and left circular polarization is investigated. It is shown that applying a longitudinal magnetic field in the plasma which causes the growth in the self-focusing of the right-circularly polarized beam and increase in the divergence of the left-circularly polarized beam is observed. Also, the role of the beam intensity and frequency on the self-focusing of the Gaussian beam is shown. 1903 Special Theoretical study of using sliver metallic nanotube as a substrate in surface enhanced Raman scattering Shirzaditabar Farzad Saliminasab Maryam Department of Physics, Razi University, Kermanshah, Iran Department of Physics, Razi University, Kermanshah, Iran 1 3 2019 25 ICOP & ICPET 2019 977 980 05 07 2019 05 07 2019 A silver metallic nanotube has a localized surface plasmon resonance in visible region. By solving Laplace’s equation in cylindrical coordinates, the local electric field in all regions of nanotube is taken which can be used to calculate enhanced electric field in any region. The enhancement of local electric field is one of the important factors in determining the SERS factor. Theoretical results show that the SERS factor near the inner wall of silver tube is about 4.36×1012 whereas near the outer wall of nanotube is about 2.57×1010. So, the silver nanotube system can be used as SERS substrate.  1841 Special Kerr rotation enhancement in bilayer graphene at the center of the mirrored structure Fallahi Vahid Naghizadeh Neda Department of Laser and Optical Engineering, University of Bonab, Bonab 5551761167, Iran Department of Laser and Optical Engineering, University of Bonab, Bonab 5551761167, Iran 1 3 2019 25 ICOP & ICPET 2019 981 984 30 06 2019 30 06 2019 The Kerr rotation of a bilayer graphene deposited at the center of a specially designed multilayer structure of dielectric media is investigated theoretically within the generalized 44 matrix approach. The reflection and transmission coefficients are analytically derived for a mirrored structure with any number of the double layers. The maximum Kerr rotation is obtained for two sequence of the double-layer with figure of merit of  degree. 1856 Special Detection of RDX by Terahertz Time Domain Spectroscopy Sharif Seyed shayan Shahin zadeh Mohsen Darbani Seyed mohammadreza Yahyaei Bahareh Eslami majd Abdollah Optics and Laser Science and Technology Research Center, Malek-Ashtar University of Technology, Shahin Shahr, Iran Optics and Laser Science and Technology Research Center, Malek-Ashtar University of Technology, Shahin Shahr, Iran Optics and Laser Science and Technology Research Center, Malek-Ashtar University of Technology, Shahin Shahr, Iran Optics and Laser Science and Technology Research Center, Malek-Ashtar University of Technology, Shahin Shahr, Iran Optics and Laser Science and Technology Research Center, Malek-Ashtar University of Technology, Shahin Shahr, Iran 1 3 2019 25 ICOP & ICPET 2019 985 988 02 07 2019 02 07 2019 In this research, Terahertz Time Domain Spectroscopy (THz-TDS) system in reflection 30 degree mode has been established for detection of  RDX. In this setup, two gallium arsenide photoconductive antennas have been used to generate and detect the terahertz pulses with frequency range between 0.1 and 2 THz. By using of data detection, absorbtion and refraction coefficient are calculated 1.5 and 108.7. That data good agree with reference. 1722 Special Stable telescopic resonator convex-concav for improvement of Nd:YAG solid-state laser beam quality Goli hasanloo Maryam Shayganmanesh Mahdi Razaghi Davood Department of Physics, Iran University of Science and Technology, Narmak, Tehran Iran Department of Physics, Iran University of Science and Technology, Narmak, Tehran Iran Photonics and Quantum Technologies Research School, NSTRI, 11155-3486, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 989 992 16 06 2019 16 06 2019 In this paper, telescopic resonator is introduced which is a valuable design due to creating a high mode volume. We designed the resonator based on the Gaussian beam theory in such a way that the change in focal length of the laser rod due to unwanted heat and telescope defocusing have the least effect on the TEM00 mode volume. we properties of  the telescopic resonator in a Nd:YAG laser has been investigated and the TEM00  mode is  maximized. the results show that for , the spot size is independent of the mirrors’curvature radius.We calculated with ABCD  matrix in order to achieve the mode volume. 1766 Special Luminescence properties of long ultrafine Zinc Oxide nanowires obtained via thermal oxidation Abdolrezapour Farnaz Moradi Mahmood Hosseini farzad Mahmood Department of Physics, College of Sciences, Shiraz University, Shiraz, Iran Department of Physics, College of Sciences, Shiraz University, Shiraz, Iran Department of Physics, College of Sciences, Shiraz University, Shiraz, Iran 1 3 2019 25 ICOP & ICPET 2019 993 996 27 06 2019 27 06 2019 In this study, we show that by applying appropriate deposition conditions, Zn nanostructured templates for the growth of zinc oxide (ZnO) nanowires can be fabricated, from which ultrafine high optical quality nanowires can be grown by means of post-deposition low-temperature oxidation. By identifying and optimizing the appropriate parameters, we successfully fabricated long ultrafine ZnO nanowires up to 10 microns in length and 135 nm in diameter. In order to investigate their potential use in Light Emitting Diodes (LEDs) the PL spectra of the samples were also measured. The studies of photoluminescence (PL) of the nanowires showed their high optical quality with band edge dominated emission with small defect-related input. 1767 Special Investigating linear and nonlinear optical properties of CdS quantum dots synthesized via aqueous synthesis method Abdolrezapour Farnaz Hosseini farzad Mahmood Moradi Mahmood Bahrami Mehrangiz Hosseini Seyed jafar Department of Physics, College of Sciences, Shiraz University, Shiraz, Iran Department of Physics, College of Sciences, Shiraz University, Shiraz, Iran Department of Physics, College of Sciences, Shiraz University, Shiraz, Iran Department of Chemistry, College of Sciences, Shiraz University, Shiraz, Iran Department of Chemistry, College of Sciences, Shiraz University, Shiraz, Iran 1 3 2019 25 ICOP & ICPET 2019 997 1000 27 06 2019 27 06 2019 In this research, colloidal Cadmium Sulfide (CdS) quantum dots were synthesized via an aqueous solution synthesis method. In order to investigate the linear and nonlinear optical properties of these quantum dots, photoluminescence (PL) spectrum, absorption spectrum and close aperture diagram of the Z-scan technique were measured and studied. Results showed that these QDs can be a great candidate to be used in a variety of optoelectronic devices such as QLEDs and Optical limiting devices due to their bandgap of 2.81 eV, emission peak around 548 nm and nonlinear refractive coefficient of -1.98×10-10 cm2/W. 1805 Special Influence of copper and indium thicknesses in the transparent conductive thin film: 〖MoO〗_3/In/Cu/In/〖MoO〗_3 Abdollahi Masoud Kadivar Erfan Department of Physics, Shiraz University of Technology Department of Physics, Shiraz University of Technology 1 3 2019 25 ICOP & ICPET 2019 1001 1004 29 06 2019 29 06 2019 In this study, the role of copper as an electric conductive layer and indium as an interface layer in a thin film of molybdenum trioxide sandwich have been investigated. To achieve the above structure, the thin layers are deposited on the substrate by thermal evaporation of the layer. Transmission spectrum in the visible region was measured by two-beam spectrophotometer instrument and electrical resistance was measured by the four-point probe. The experimental results show that the maximum value of the suitability function is 8 nm copper thickness and 3 nm indium thickness. 1689 Special Velocimetry of using image motion monitoring method Mohammadi razi Ebrahim Rasouli Saifollah Faculty of physics, Department of Basic Sciences, university of Bojnord, Bojnord, Iran Optics Research Center, Institute of Advance Studies in Basic Science, Zanjan, Iran 1 3 2019 25 ICOP & ICPET 2019 1005 1008 07 06 2019 07 06 2019 In this paper, the anisotropy of underwater turbulence was investigated using image motion monitoring method. Accordingly a beam of light with 532 nm wavelength after collimating with a diameter of 1 cm enters the underwater turbulence. The underwater turbulence is made up of an water-filled aquarium with dimensions of 20×20×30 cm3. The angle of arrival, AA, of light beam was measured at the end of the turbulence path at two directions perpendicular to propagation direction. Comparing the variances of AA in two directions, the anisotropy of underwater turbulence and influence of different temperature gradients on it were investigated. Results show the underwater turbulence is an anisotropic medium. In addition the anisotropy increases as temperature gradient increases.   1802 Special xuv output coupler through a one-dimensional photonic crystal Jafari Davod Aghbolaghi Reza Azizi Roya Faculty of Science, University of Bonab, Bonab Faculty of Science, University of Bonab, Bonab Faculty of Science, University of Bonab, Bonab 1 3 2019 25 ICOP & ICPET 2019 1009 1012 29 06 2019 29 06 2019 In this paper we try to improvement an antireflective multilayer mirror for basic mode so that its reflectivity increase for high harmonic mode. We use a multilayer mirror from SiO2 and AlAs with different thickness, then we chose the best thickness for every layer. The result shows that the transitions coefficient increase with incident angle Also transition dispersion decrease with increasing incident angle. On the other hand , xuv reflective coefficient increase with incident angle. But reflective coefficient is almost constant between . This is an important property. 1937 Special Simulation and study of terahertz bandpass filter to reduce frequency bandwidth Sajedi Ahmad Nazeri Majid Alizadeh Amir university of kashan university of kashan university of kashan 1 3 2019 25 ICOP & ICPET 2019 1013 1016 08 07 2019 08 07 2019 In this paper, a bandpass filter is simulated using CST software. Considering that the width of the output spectrum of the filter is one of the most important factors in these types of filters, two of these filters are placed in intervals of wavelength, according to the principles of Fabry Perot, This will reduce the amount of bandwidth. This theory has been investigated in a range of frequencies (0.5 to 2.5 terahertz). Finally, the incidence wave angle on the filter has also been analyzed, which indicates that, depending on the angle of the incidence wave, the frequency peak of the output spectrum is displaced. Using this method, the output spectrum of the filter can be used in tunable applications. 1684 Special The change of optical band gap of Nd3+ doped glasses by electron beam irradiation Rahimian Hadi Shirmardi Seyed pezhman Mokhtari Hossein laser and Optic Research Center, Department of science, Imam Hossein comprehensive University, Tehran, Iran. Radiation Application Research School, Nuclear Science and Technology Research Institute (NSTRI), P.O.Box: 14395-836, Tehran, Iran Department of Physics, Yazd University, Yazd, Iran 1 3 2019 25 ICOP & ICPET 2019 1017 1020 07 06 2019 07 06 2019 Fabrication of Nd3+ doped oxyfluorophosphate glass with new composition of 58P2O5-26MgF2-10MgO-3K2CO3-2Y2O3-1Nd2O3 have been presented. The samples have been irradiated with 10 MeV electron beam at different dose rates. Absorption spectra of samples before and after electron irradiation have been measured at room temperature The optical band gaps, width of tail (Urbach parameter), the extinction coefficient and the refractive index of samples have been determined. The experiments and calculations show that electron beam irradiation creates defects and color centers in glass and these change some optical parameters. 1658 Special Design of Highly sensitive 2D plasmonic refractive index biosensor Nasiri Akram Asadishad Tannaz Hamidi Seyedeh mehri Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 1021 1024 07 06 2019 07 06 2019 During the last few years with the significant developments in nano­science and technology, a new field of science has been introduced which made it possible for human to design and manufacture the applications such as nano biosensors. These nanostructures with a dimension which is less than the wavelength of the exciting incident wave are made of metal and dielectric layers. The surface plasmons are the result of the interaction between electromagnetic waves and free electrons mass at the shared boundary of metal and dielectric. Since the propagation constant of these waves is strongly dependent on the changes in the dielectric medium, this feature of plasmons are used to detect the changes in mediums. In this biosensor, the information of these changes in mediums can be achieved by analyzing the structures optic response variation. The proposed plasmonic structure in this paper, as a refractive index sensor, is a kind of sensor with a simple structure which has a period of 800 nm, which is easy to operate due to the use of gold and Poly-dimethyl-siloxane polymers in the structure. Favorable results were reached by optimizing the structure in near infrared range and studying the absorption spectrum of the structure for two samples of water and neurons, which showed that this structure with 77% absorption, sensitivity 715 and figure of merit 12.4% is suitable for the sensor applications in the medicine. 1657 Special Design and setup of fiber optic Raman probe in order to study of glucose spectrum Soltani Saeideh Nazeri Majid Sajedi Ahmad Department of Laser & Photonics, Faculty of Physics, University of Kashan, Kashan, Iran Department of Laser & Photonics, Faculty of Physics, University of Kashan, Kashan, Iran Department of Laser & Photonics, Faculty of Physics, University of Kashan, Kashan, Iran 1 3 2019 25 ICOP & ICPET 2019 1025 1028 07 06 2019 07 06 2019 In this research, by designing and installing Raman fiber probe, the spectrum of water-soluble glucose has been investigated. The designed Raman probe consists of two lenses and a mirror with numerical aperture (NA) of 0.23 and a laser of 532 nm. The system is used to measure the spectrum of water-soluble glucose at different concentrations as well as different laser power. 1777 Special Effect of the Magnetic Field on the Spin States of Electrons in Silicene Rastgoo Sara Parsaei Foad Physics Department, Sirjan University of Technology, Sirjan Physics Department, Sirjan University of Technology, Sirjan 1 3 2019 25 ICOP & ICPET 2019 1029 1032 28 06 2019 28 06 2019 In the present article the temporal behavior of the spin polarization of the electrons in the silicene is studied. Vertical electric and magnetic field on the silicene sheet is considered. We calculate the time evolution operator and then the state of the system at time t is determined. Using the state of the system at any time t, the temporal behavior of the spin polarization is derived. Our results indicate that the dynamical behavior of spin states obeys the oscillatory behavior which presents collapse and revival pattern in some cases. As magnetic field increases, the period of the pattern changes. Furthermore, energy states and magnetic field have similar influence.   1778 Special Effect of the Buckling Parameter on the Dynamical Spin Polarization in Silicene Rastgoo Sara Parsaei Foad Physics Department, Sirjan University of Technology, Sirjan Physics Department, Sirjan University of Technology, Sirjan 1 3 2019 25 ICOP & ICPET 2019 1033 1036 28 06 2019 28 06 2019 In the present article the temporal behavior of the spin polarization of the electrons in the silicene is studied. Vertical electric and magnetic field on the silicene sheet is considered. The time evolution operator is calculated and then the state of the system at time t is determined. Using the state of the system at any time t, the temporal behavior of the spin polarization is derived. Our results indicate that the dynamical behavior of the spin polarization obeys the oscillatory behavior which directly depends on the buckling parameter. For an especial buckling parameter, collapse and revival pattern is seen. It is shown that as the buckling parameter increases, the period of the pattern ascends. 1686 Special The investigation of optical band gap changes of Eu3+ doped glass and nano glass-ceramics due to electron beam irradiation Rahimian Hadi Shirmardi Seyed pezhman Mokhtari Hossein laser and Optic Research Center, Department of science, Imam Hossein comprehensive University, Tehran, Iran. Radiation Application Research School, Nuclear Science and Technology Research Institute (NSTRI), P.O.Box: 14395-836, Tehran, Iran Department of Physics, Yazd University, Yazd, Iran 1 3 2019 25 ICOP & ICPET 2019 1037 1040 07 06 2019 07 06 2019 In this research, the optical properties such as optical band gap and Urbach energy of Eu3+ doped glass and nano glass-ceramics (with composition of 64.5P2O5, 35CaF2, 0.1Eu2O3 ) before and after electron beam irradiation with energy 10MeV have been investigated. The absorption of samples was measured in the wavelength range 200 to 1000nm that it shows the formation of color centers in Eu3+ doped glass and nano glass-ceramics. The Tau diagrams indicated that the electron irradiation can reduce the optical band gap and enhance Urbach energy. 1796 Special Increasing of Propagation Length of the Anisotropic Magneto-Optic Plasmonic Slab waveguide Using Graphene Rasoulian lafmejani Samaneh Khatir Mahdi 1 3 2019 25 ICOP & ICPET 2019 1041 1044 29 06 2019 29 06 2019 This paper analyzes three layer surface plasmon polariton (SPP) slab waveguides with side layers of gold and graphene and mid layer of magneto-optic (MO) as a function of the mid layer thickness at a wavelength of 1550 nm. Propagation constant were obtained versus thickness of mid layer in two propagation directions, forward and backward, by considering MO effects. The results show that three layer waveguide of Graphene-Magneto-optic-Graphene (GMOG) increases propagation length and decreases loss. As a result, it is possible to design magneto-optic plasmonic isolator by using metal-insulator-metal (MIM) waveguides. 1654 Special Optical Design of Horizon Simulator for Calibration Test of Double Scanning Earth Horizon Sensor Gharghi Pegah Abrazeh Saber Khezri Mohammad ehsun Space Sensors Group, Mechanics Institute, Iranian Space Research Center Space Sensors Group, Mechanics Institute, Iranian Space Research Center Space Sensors Group, Mechanics Institute, Iranian Space Research Center 1 3 2019 25 ICOP & ICPET 2019 1045 1048 07 06 2019 07 06 2019 Double scanning earth horizon sensors are used for determining the Roll and Pitch Angles of satellites. These operate on the principal of detecting the discontinuity in the radiance at the limb. In recent Years, with the development of space technology, the earth simulator that can provide horizon earth to calibration tests for earth sensor on the ground. In this paper, we design collimated earth simulator based on the altitude orbit 6000 km by use of meniscus lens. Applied ZEMAX software to design the collimating lens that can provide the position and diameter of earth diaphragms correspond earth angle of 62º. The results show the accuracy of earth simulator for calibration test in 6000 km on the ground. 1734 Special Symmetric microbubble resonator fabricated by arc discharge Chenari Zeynab Hossein pour Erfan Latifi Hamid Physics department, Shahid Beheshti University, Evin, Tehran Laser and plasma research institute, Shahid Beheshti University, Evin, Tehran Laser and plasma research institute, Shahid Beheshti University, Evin, Tehran 1 3 2019 25 ICOP & ICPET 2019 1049 1052 16 06 2019 16 06 2019 Here, an improved fabrication method of symmetric microbubble resonator based on heating of a slightly pressurized capillary is presented. A double arc discharge device has been fabricated which ensures a homogeneous distribution of the heat all over the capillary surface. Microbubbles with 220-640 µm diameters and the wall thickness of 2-7 µm are fabricated. The demonstrated microbubble resonators have Quality factors up to 2.6 × 106 at 1558 nm. 1914 Special Sensitivity Improvement of Graphene Based Surface Plasmon Resonance Biosensor by Application of Aluminium Oxide Layer 1 3 2019 25 ICOP & ICPET 2019 1053 1056 05 07 2019 05 07 2019 We present a multi-layered surface plasmon resonance (SPR) biosensor based on gold/AL2O3/graphene for detection of biomolecules. The Kretschmann configuration is employed for the sensor arrangement. The maximum sensitivity of about 76°/RIU is obtained with a monolayer of graphene and the thicknesses of gold and AL2O3 layers equal to 50 nm and 20 nm respectively. Our proposed structure is 46% and 17% more sensitive compared to the conventional SPR biosensor (without graphene layer) and the conventional graphene-based SPR biosensor respectively. 1829 Special The Effects of Angle of Incidence on Diffraction Pattern in the Sun Sensor Afkhami Marziyeh Foroozan Hossein Alibani Simin Asnafi Mohammad ali Raeisi Behrooz Space Sensor Group, Institute of Mechanics, Iranian Space Research Center Space Sensor Group, Institute of Mechanics, Iranian Space Research Center Space Sensor Group, Institute of Mechanics, Iranian Space Research Center Space Sensor Group, Institute of Mechanics, Iranian Space Research Center Space Sensor Group, Institute of Mechanics, Iranian Space Research Center 1 3 2019 25 ICOP & ICPET 2019 1057 1060 30 06 2019 30 06 2019 The comprehensive optical design of sun sensor needs considering the effect of sunray's angle on the diffraction pattern on the detector plane. For this purpose the diffraction pattern has been simulated on the basis of Fresnel –Kirchhoff integral using MATLAB. The results indicate that by increasing the angle of incoming Sunray the peak location shifts and the diffraction width increases, consequently, the accuracy of the sensor decreases in large angles.   1728 Special Comparative study of perovskite solar cells with different Al2O3 thicknesses Ghorbani koltapeh Atefeh Abdollahi nezhand Bahram Moravvej farshi Mohammad kazem Faculty of Electrical and Computer Engineering, Nano Plasmo-Photonic Research Group, Tarbiat Modares University, Tehran, Iran Faculty of Electrical and Computer Engineering, Nano Plasmo-Photonic Research Group, Tarbiat Modares University, Tehran, Iran Faculty of Electrical and Computer Engineering, Nano Plasmo-Photonic Research Group, Tarbiat Modares University, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 1061 1064 16 06 2019 16 06 2019 The effect of the Al2O3 thin film on photovoltaic characteristics of perovskite solar cells is studied. The thin film of the Al2O3 is deposited on mesoporous TiO2 by a rotational angular reactive sputtering method. The considered perovskite solar cells have the normal architecture of FTO/c-TiO2/mp-TiO2/CH3NH3PbI3/spiro-OMeTAD/Au. The increase of Al2O3 thickness leads to higher open circuit voltage. However, the current densities of the fabricated solar cells are reduced due to insulating characteristics of Al2O3. Here, solar cells with 15 nm thickness of Al2O3 present the best performance among the three different thicknesses studied. 1668 Special Fabrication of p-type transparent conducting oxide with high hardness for application as protective anode in flat panel displays Ahmadi Seyed morteza Sharifi Malvajerdi Shahab Asemi Morteza Ghanaatshoar Majid Laser and Plasma Research Institute, Shahid Beheshti University, Evin, 1983969411, Tehran, Iran Laser and Plasma Research Institute, Shahid Beheshti University, Evin, 1983969411, Tehran, Iran Laser and Plasma Research Institute, Shahid Beheshti University, Evin, 1983969411, Tehran, Iran Laser and Plasma Research Institute, Shahid Beheshti University, Evin, 1983969411, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 1065 1068 07 06 2019 07 06 2019 In this research, a p-type transparent conducting oxide with high hardness is prepared. Samples have been analysed to investigate their optical and electronic properties, crystal structure and the hardness of the layer. The formed layer was revealed to have potential applications as protective conducting glass in electronic displays. For this purpose, 2.5% Mg-doped CuCrO­2 delafossite target was prepared using solid-state reaction method. The target was then used to deposit a CuCrO2: Mg thin layer on quartz substrates using RF sputtering. The prepared thin film that can play the role of a positive electrode in displays has a transparency in the visible region of about 67%, an electrical conductivity of 10.5 Scm-1 and a mechanical hardness of about 950 Hv. 1932 Special Design and Simulation of ‌a Bifocal lens based on Dielectric Metasurface Shanei Mohammad mahdi Hashemi Mahdieh Nanomaterials Group, Department of Materials Engineering, Tarbiat Modares University (TMU), P.O. Box 14115-143, Tehran, Iran Department of Physics, College of Science, Fasa University, Fasa 74617-81189, Iran 1 3 2019 25 ICOP & ICPET 2019 1069 1072 06 07 2019 06 07 2019 In this paper, we design and simulate a single and a bifocal lens at the wavelength of 700 nm. Metasurfaces are 2-D form of bulky metamaterials which consist of an array of resonators. To reduce the radiative loss and enhancement of efficiency, we take advantage of dielectric resonators such as Silicon. In these constitutions, the resonance modes excited by means of displacement currents. Finally, to focus the incident light at two different areas, a phase modulation has been applied on the arrangement of resonators. 1696 Special Modal Phase-Matched Second Harmonic Generation in Asymmetric Silicon Slot Waveguide Coated with a Nonlinear Polymer Janjan Babak Ahmadi Vahid Fathi Davood Heidari Mohsen Department of Electrical and Computer Engineering, Tarbiat Modares University, Tehran Department of Electrical and Computer Engineering, Tarbiat Modares University, Tehran Department of Electrical and Computer Engineering, Tarbiat Modares University, Tehran Department of Electrical and Computer Engineering, Tarbiat Modares University, Tehran 1 3 2019 25 ICOP & ICPET 2019 1073 1076 08 06 2019 08 06 2019 In this paper, an asymmetric silicon slot waveguide coated with a nonlinear polymer is proposed to obtain efficient second harmonic generation (SHG) from mid-infrared (λ = 3.1 μm) to near-infrared (λ = 1.55 μm) wavelengths. The required phase matching is fulfilled between fundamental mode at fundamental frequency and third-order mode at SHG by carefully designing the waveguide dimensions. A conversion efficiency of 24.7% is predicted for a low pump power of 10 mW which is comparable to the previously reported results. Our concept can be extended to other second-order nonlinear processes like sum and difference frequency generation. 1705 Special Micro-nano 3D structuring based on two-photon photopolymerization Ajami Aliasghar Husinsky Wolfgang Faculty of Physics, Semnan University, Semnan, Iran Institute of Applied Physics, Vienna University of Technology, Vienna, Austria 1 3 2019 25 ICOP & ICPET 2019 1077 1080 11 06 2019 11 06 2019 Based on linear absorption photopolymerization it is not possible to create 3D microstructure with resolution below the diffraction limit which depends on the wavelength of the laser beam used for photopolymerization as well as the optics used for focusing the laser beam. Using high intense laser beam with wavelength beyond the linear absorption spectrum it is possible to create structures based on two-photon photopolymerization (2PP) with resolutions below the diffraction limit. In this work we determined the two-photon absorption (2PA) cross section of a two-photon initiator (2PI) using an open-aperture Z-scan. Then we utilized the examined 2PI for creating 3D microstructures based on 2PP. The realized structures illustrate the resolution of a few 100 nm which is well below the diffraction limit of the setup used for the structuring.    1706 Special Analytical investigation of hyperbolic metamaterial with ultra-thin layer Moradiani Fatemeh Saifoori Mahmood Department of Electrical Engineering, University of Shahid Rajaee Teacher Training, Tehran, Iran Department of Electrical Engineering, University of Shahid Rajaee Teacher Training, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 1081 1084 11 06 2019 11 06 2019 We present a new model for performance analysis of hyperbolic metamaterial with ultra-thin metal layer. Based on theoretical analysis, we have been modified Drude relation for metal layers with geometric size below ten nanometers.  Then, the effect of this relation applied to transverse and perpendicular effective permittivity. Then, dispersion relation and transition and reflection relations coefficient for these structures are modified. The numerical calculation show, when we apply the effect of ultra-thin metal in HMM structure, the magnitude of effective permittivity is reduced about 45.28% in real part and 52.68% in imaginary part. These variations in effective permittivity limit the magnitude of transmission coefficients to 15%. 1726 Special Perovskite light emitting diode based on FAPbBr3 Moazzezi Parinaz Ahmadi Vahid Arabpour roghabadi Farzaneh Abdollahi nezhand Bahram Payandeh Masoud Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 1085 1088 16 06 2019 16 06 2019 Recently, organometal halide perovskite has been attracted a lot of attention to be employed in optoelectronic devices. Perovskite desired properties like long carrier diffusion length, high radiative recombination, and pure luminescence introduced these materials as suitable candidates to use in optoelectronic devices. In this study, perovskite LED based on formamidinium lead bromide (FAPbBr3) as the emitter layer is used. Perovskite LED emits green light with λ=537nm that starts emitting at 2.7V. 1727 Special The effect of Cs cation on the performance of CH3NH3PbI3 perovskite solar cell Solh talab Nasrin Ahmadi Vahid Arabpour roghabadi Farzaneh Abdollahi Nezhand Bahram Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 1089 1092 16 06 2019 16 06 2019 In this work, methylammonium lead iodide (CH3NH3PbI3) perovskite light absorbers are doped by cesium to improve the performance of perovskite solar cell. The optical, morphological, and crystalline properties of the pure and mixed perovskite films are investigated. The most uniform perovskite layer is obtained for the film containing 0.05M of CsCl that yields the device with higher power conversion efficiency (4.64%) than the other concentrations. 1733 Special Nano-Particle Trapping by Wedge and V-Groove Waveguides Sahafzadeh Mahdi Habibzadeh sharif Amir Electrical Engineering Faculty, Sahand University of Technology, Tabriz, Iran Electrical Engineering Faculty, Sahand University of Technology, Tabriz, Iran 1 3 2019 25 ICOP & ICPET 2019 1093 1096 16 06 2019 16 06 2019 In this paper, we numerically show that Silicon-on-Insulator (SOI) based wedge and V‑groove waveguides have much higher capability to trap nanoparticles compared with the traditional stripe waveguides. According to the calculations, the maximum trapping force exerted by the wedge and V‑groove waveguides to a 5 nm radius nanoparticle can be 8.3 and 14 times greater than that of the stripe waveguide respectively. 1748 Special Non-Enzymatic Optical Glucose Biosensor Using Grown ZnO Nanorods on Printed Circuit Boards Nourgostar Mohammad reza Kordrostami Zoeir Department of Electrical Engineering, Shiraz University of Technology, Shiraz, Iran Department of Electrical Engineering, Shiraz University of Technology, Shiraz, Iran 1 3 2019 25 ICOP & ICPET 2019 1097 1100 18 06 2019 18 06 2019 A fluorescent glucose biosensor based on the grown ZnO nanorods on printed circuit boards (PCBs) has been fabricated. The ZnO nanorods have been grown on the conductive PCBs using hydrothermal method. The seed layer has been spin coated on PCBs. New annealing temperatures and durations have been utilized in fabricating the proposed fluorescent glucose biosensor. XRD pattern and SEM image show that ZnO nanorods have been formed in the desired form during the growth process. The biosensor output is based on the photo luminescence (PL) spectra. After essential treatments of the sensor, 1 mM to 80 mM glucose concentrations have been drop casted on the PCBs and their PL response were measured. The results show the high sensitivity of the fabricated sensor to the glucose concentration variations. The amount of the change in PL spectra for different glucose concentrations has been quantified and discussed. 1787 Special Modulation Properties of Photonic Crystal Fano Laser Rasoulzadeh zali Aref Moravvej farshi Mohammad kazem Faculty of Electrical and Computer Engineering, Tarbiat Modares University, Tehran Faculty of Electrical and Computer Engineering, Tarbiat Modares University, Tehran 1 3 2019 25 ICOP & ICPET 2019 1101 1104 29 06 2019 29 06 2019 We analyzed a laser with a mirror realized by Fano interference between the discrete resonance of the nanocavity and continuum of waveguide modes. The steady-state behavior of the photonic crystal Fano laser (PhC-FL) is investigated and shown that by increasing the detuning the output power from cross-port decreases however from through-port increases. In the case of current modulation of the FL, it behaves like a conventional laser and its bandwidth is limited by carrier dynamics limited by relaxation oscillation frequency. It is shown that by increasing the modulation amplitudes the accuracy of the small signal results decreases since it is assumed a very negligible dynamical change around the steady-state point. Furthermore, it is also shown that by increasing the detuning the relaxation oscillation frequency increases. 1790 Special The Linear Behavior of the Human Hemoglobin in Water, Ethanol and Methanol solvents Jalilian Behrooz Zaker hamidi Mohammad sadegh Kheradmand Reza Aras International Campus, University of Tabriz, Tabriz, Iran. bjalilian445@gmail.com Associate Professor, Photonics department, Research Institute for Applied physics & Astronomy (RIAPA), University of Tabriz, Tabriz, Iran. zakerhamidi@tabrizu.ac.ir Associate Professor, Photonics department, Research Institute for Applied physics & Astronomy (RIAPA), University of Tabriz, Tabriz, Iran. r_kheradmand@tabrizu.ac.ir 1 3 2019 25 ICOP & ICPET 2019 1105 1108 29 06 2019 29 06 2019    In this work has investigated the linear behavior of the Human hemoglobin with using UV-V is spectroscopy and fluorescence in several solvents (1.0 × 10-5M) where prepared in 5ml from water, ethanol and methanol solvents and After storing at 4°C for at least 24hr. The absorption spectra and Fluorescence results showed that electron transition and change in the initial nature of hemoglobin is due to solvent. Also the fluorescence spectrum of human hemoglobin sample in methanol shows a higher redshift than two other solvents. 1810 Special Optical quantum random number generator based on orbital angular momentum of light Tofighi Sara Chehreghani anzabi Layla Department of Communication Technology, Iran Telecommuniation Research Center Department of Communication Technology, Iran Telecommuniation Research Center 1 3 2019 25 ICOP & ICPET 2019 1109 1112 29 06 2019 29 06 2019 Random numbers are critical to both classical and quantum cryptography. A key necessity for random-number generators is that their outputs must be unpredictable. The computer generated random numbers are pseudo-random and using them in cryptography causes unexpected security-holes. True randomness can only be extracted from the inherently random process such as quantum phenomena. Among different types of quantum random number generator, those are based on quantum optics attract more attention because of their advantages such as easier implementation, higher random number generation rate, and compact size. The quantum optical random number generators can be classified into three main classes according to the type of randomness sources and quantum measurement. In this paper, a new idea to generate truly random numbers based on the superposition of photon’s orbital angular momentum (OAM) degrees of freedom is proposed. Our proposed technique which belongs to the first class of optical QRNGs can enhance both the generation rate and unpredictability of random bit string. 1835 Special Synchronization driven spatial adjustment of self-pulsing laser cavity solitons Ghaedamini Atefeh Eslami Mansour Kheradmand Reza Photonics Group, RIAPA, University of Tabriz, Tabriz, Iran Department of Physics, University of Guilan, P.O. Box 41335-19141 Rasht, Iran Photonics Group, RIAPA, University of Tabriz, Tabriz, Iran 1 3 2019 25 ICOP & ICPET 2019 1113 1116 30 06 2019 30 06 2019 We investigate the interaction of self-pulsing laser cavity solitons (SPLCS) in a broad-area semiconductor laser with saturable absorber. We show that for appropriately close distances, synchronization is excepted to happen between SPLCSs. As a result of such an interaction, the two elements drive each other away. Since SPLCSs are free in choosing their phase and polarization, phase interaction between two entities leads to a synchronized behavior in terms of phase and intensity oscillations. We show that interaction strength depends on the initial separation distance of SPLCSs and it is more effective in shorter ranges. We also show how the manifestations of such an interaction, like velocity of SPLCSs, decrease exponentially with the initial separation distance. 1845 Special The Effect of Casimir Force on Dynamical Behavior of Nano-electromechanical Switches Mikaeeli Ameneh Keshavarz Alireza Physics Department, Shiraz University of Technology Physics Department, Shiraz University of Technology 1 3 2019 25 ICOP & ICPET 2019 1117 1120 30 06 2019 30 06 2019 The effect of Casimir force on dynamical behavior of nanoelectromechanical switches is simulated in this paper. The system investigated in the current study is an electromechanical nanostructure switch such as cantilever-beam type. Considering basic parameters of nanoelectromechanical switches, the effect of Casimir force and pull-in voltage on the process of switching has been investigated. Results demonstrate that these two factors play a significant role in every type of nanoelectromechanical switches. Thus, bending rate of plates and finally the performance of switching can be controlled by increasing or decreasing these two elements. 1850 Special Design and Characterization of a Novel Silicon Phase Modulator based on the Lateral Carrier Depletion Structure Mirzaei Mohammad sadegh Mashayekhi Hamidreza Zandi Mohammad hossein Department of physics, Shahid Bahonar University, Kerman, Iran Department of physics, Shahid Bahonar University, Kerman, Iran Department of physics, Shahid Bahonar University, Kerman, Iran 1 3 2019 25 ICOP & ICPET 2019 1121 1124 02 07 2019 02 07 2019 In this paper, through electrical and optical simulations, a compact-sized carrier depletion silicon phase modulator operating in 1.3µm is presented. The phase shifter is composed by a 120µm-long reverse biased PN junction. With the precise design of the PN junction, the calculated modulation efficiency contains between 1.02 and 2.2V.cm. The compact phase shifter optical loss is 2.49dB/cm at 4V. Also, this structure provides >30GHz high speed operation. Further improvement in its performance in comparison to the state of the art phase shifters is obtained. 1854 Special Synthesis of 2D Perovskite and Using Dip-coating Method Suitable for Fabrication of Optoelectronic Devices Darman Parsa Darbari Sara Faculty of Electrical and Computer Engineering, Tarbiat Modares University, Tehran, Iran Faculty of Electrical and Computer Engineering, Tarbiat Modares University, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 1125 1128 02 07 2019 02 07 2019 In this paper synthesis of Ruddlesden-Popper tow dimensional Perovskite (RPPs) is reported. Not only has this kind of Perovskite (PVK) its 3D counterpart advantageous such as high absorption coefficient and good carrier transport properties but also its stability has been improved. In this work BA molecule which is stable, heat and humid resistive and big enough to cover a mono layer of lead tetra iodide was used to prevent heat and humidity to reach PVK layer and stabilize it. The existence of spacer molecule increase lattice constant and quantum confinement enlarge band gap. After Dip-coating photoluminescence (PL) and photo absorption spectroscopy test was done and band gap was measured 2.5eV and PL pick was 2.21eV. 1868 Special Investigation of optical confinement factor effect on photonic crystal Fano laser performance Hamzeh Golshan Razaghi Mohammad Rasoulzadeh zali Aref Dept. of Electrical Eng., School of Engineering, University of Kurdistan, Sanandaj, Iran Dept. of Electrical Eng., School of Engineering, University of Kurdistan, Sanandaj, Iran Faculty of Electrical and Computer engineering, Tarbiat Modares university, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 1129 1132 02 07 2019 02 07 2019 In this paper the operation of a photonic crystal Fano laser is analyzed and simulated. In this simulation, the propagation equations are solved using the finite difference method. The dynamical behavior of the laser is demonstrated for two regimes of operation, continuous-wave and self-pulsing. In order to optimize laser operation, the nanocavity field confinement factor has been swept and its effects on the laser operation is investigated. Based on our simulations by changing this confinement factor from 0.1 to 0.32, the maximum energy, full width at half maximum and frequency variations of 0.27 pJ, 0.009 ns and 0.738 GHz in the output signals are respectively observed. 1928 Special Intensity-dependent plasmonic resonance of graphene layer Sadeghi Mahdi Ahmadi Vahid Department of Electrical & Computer Engineering, University of Tarbiat Modares, Tehran, 14115-111, Iran. Department of Electrical & Computer Engineering, University of Tarbiat Modares, Tehran, 14115-111, Iran. 1 3 2019 25 ICOP & ICPET 2019 1133 1136 06 07 2019 06 07 2019 In this paper, we study excitation of surface plasmon polaritons (SPPs) by Kretschmann-Raether configuration for graphene layer sandwiched between two dielectrics for enough high intensity input electromagnetic (EM) wave. We consider the dispersion of SPPs for high quality graphene layer in which scattering loss is much lower than SPPs energy.  Results show that for rather high intensity EM wave, propagation constants of SPPs show nonlinear dependence to incidence angle. Also dispersion curves of surface plasmon polaritons have singularity at some frequencies which results to more plasmonic resonances. These phenomena can be used to design angle and frequency filters which are tunable by intensity of control pump. 1831 Special Fabrication and Characterization of Oxygen Sensitive Luminophore Layer Abshari Fatemeh Darbari Sara Faculty of Electrical and Computer Engineering, Tarbiat Modares University, Tehran, Iran Faculty of Electrical and Computer Engineering, Tarbiat Modares University, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 1137 1140 30 06 2019 30 06 2019 In this paper we propose a method to fabricate the luminophore layer for an optical oxygen sensor to gain the maximum permeability of oxygen molecules into the sensing layer as well as the optimum quenching mechanism by selecting the appropriate matrix layer and the Oxygen Sensing Probe (OSP). We show the FE-SEM images of the resulting sensing layer that indicate the porosity of the layer with average pore diameter of ≈1.8 µm. Furthermore, we measure the Photoluminescence (PL) emission of the resulting sensing layer either in the presence or in the absence of O2, which shows a significant reduction in the PL emission peak intensity that is attributed to the quenching mechanism due to the presence of oxygen. 1664 Special Two dimensional deformation map measurement using an improved optical speckle shearography setup Motallebi araghi Morvarid Hooshmand ziafi Seyedeh helia Hasani Khosro Dashtdar Masoomeh Optical Research Lab 3, Department of Physics, University of Tehran, Kargar Shomaly St., 1439955961, Tehran, Iran Department of Physics, Shahid Beheshti University, Evin, Tehran, Iran Optical Research Lab 3, Department of Physics, University of Tehran, Kargar Shomaly St., 1439955961, Tehran, Iran Department of Physics, Shahid Beheshti University, Evin, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 1141 1144 07 06 2019 07 06 2019 In this paper a new optical speckle shearography setup to measure the two dimensional strain map in materials is introduced. This setup is based on the speckle shearography using a Michelson interferometer, but uses a divergent coherent laser beam and an innovated optical arrangement to expand the field of view and form the speckle images. Compared to other similar setups, our setup requires fewer optical components, is more robust against unwanted vibrations, and is easier to be aligned. To demonstrate the capabilities of our setup, two dimensional map of the out of plane component of the strain field in a metallic sample plate under dynamic load has been measured and presented. 1853 Special Electrical Investigation of Plano-convex Lens Effect on Significant Parameters of Thin Film Silicon Solar cell Noorafkan Mohammad Manavizadeh Negin Nano-Structure lab, Faculty of Electrical Engineering, K.N. Toosi University of Technology, Tehran, Iran Nano-Structure lab, Faculty of Electrical Engineering, K.N. Toosi University of Technology, Tehran, Iran 1 3 2019 25 ICOP & ICPET 2019 1145 1148 02 07 2019 02 07 2019 In this paper, the performance of a thin film silicon-based solar cell in presence of Plano-convex lens on its top is investigated and simulated by a TCAD tool.  This structure consists of conventional thin-film silicon solar cell and a silicon dioxide Plano-convex lens which is constructed by deposition and chemical etching of silicon dioxide on top of solar cell. The lens concentrates the incident light closer to the solar cell’s contacts; as a result, the performance of solar cell has been increased. Significant parameters of solar cells including short-circuit current, open-circuit voltage, Fill Factor and conversion efficiency are obtained as a function of lens thickness. Furthermore, the Dark/Illumination current ratio and External Quantum Efficiency (EQE) of a solar cell with and without lens are compared. Simulation results reveal that the lens thickness has a great impact on solar cell parameters and increases open-circuit voltage, short-circuit current and Fill Factor up to 0.412 V, 31.5 µA/cm2 and 0.7519, respectively. In the proposed solar cell, efficiency is enhanced more than 30% from its original value. Considering different lens thicknesses, 8µm is the optimal thickness for the lens. I-V characteristics under illumination for two structures, with and without a lens, are also studied. According to the results, an incrementally current shift with an increase of 50% exists with respect to the second case. By applying a Plano-convex lens to the solar cell structure, EQE reaches the maximum value up to 80%.