Iranian Conference on Optics and Photonics and Iranian Conference on Photonics Engineering and Technology
کنفرانس اپتیک و فوتونیک ایران و کنفرانس مهندسی و فناوری فوتونیک ایران
ICOP & ICPET
Basic Sciences
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مجموعه مقالات پذیرفته و ارائه شده در بیستمین کنفرانس اپتیک و فوتونیک ایران
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Anisotropy Effect on the Nonlinear Optical Refractive Index Changes of a Three-Dimensional Quantum Dot Confined at the Center of a Cylindrical Nano-wire
Anisotropy Effect on the Nonlinear Optical Refractive Index Changes of a Three-Dimensional Quantum Dot Confined at the Center of a Cylindrical Nano-wire
تخصصی
Special
پژوهشي
Research
The effect of geometrical anisotropy is numerically investigated on the linear and nonlinear optical refractive index changes of a GaAs quantum dot which is located at the center of a Ga1-xAlxAs cylindrical nano-wire. The finite difference approximation has been used for obtaining energy eigenvalues and corresponding wave functions. Also, the compact density matrix formalism is applied to investigate linear, third order nonlinear and total optical refractive index (RI) changes. The optical properties are calculated as a function of the incident photon energy for different ellipsoid aspect ratio and dot radius. The results clearly reveal that the dot anisotropy plays an important role in determining the magnitude of nonlinear RI changes which enable us to adjust saturation condition. We also found that the dot anisotropy shifts optical spectrum towards both lower and higher energies which depend on the shape of dot (spherical, prolate or oblate quantum dot) and dot radius.
The effect of geometrical anisotropy is numerically investigated on the linear and nonlinear optical refractive index changes of a GaAs quantum dot which is located at the center of a Ga1-xAlxAs cylindrical nano-wire. The finite difference approximation has been used for obtaining energy eigenvalues and corresponding wave functions. Also, the compact density matrix formalism is applied to investigate linear, third order nonlinear and total optical refractive index (RI) changes. The optical properties are calculated as a function of the incident photon energy for different ellipsoid aspect ratio and dot radius. The results clearly reveal that the dot anisotropy plays an important role in determining the magnitude of nonlinear RI changes which enable us to adjust saturation condition. We also found that the dot anisotropy shifts optical spectrum towards both lower and higher energies which depend on the shape of dot (spherical, prolate or oblate quantum dot) and dot radius.
Nonlinear refractive index changes, Anisotropic quantum dot, Nano-wire.
Nonlinear refractive index changes, Anisotropic quantum dot, Nano-wire.
937
940
http://opsi.ir/browse.php?a_code=A-10-1-359&slc_lang=en&sid=1
Ghasem
Safarpour
Ghasem
Safarpour
safarpour.ghasem@gmail.com
`10031947532846001557`

10031947532846001557
Yes
Hosein
Ganjipour
Hosein
Ganjipour
h_ganjipour@pnu.ac.ir
`10031947532846001558`

10031947532846001558
No