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Salehpour M R, Heydari Fard A, Fallah H, Hajy Mahmoodzadeh M. Investigation and simulation of Notch filter and investigation of the effect of matter and thickness on its properties . ICOP & ICPET _ INPC _ ICOFS 2018; 24 :237-240
URL: http://opsi.ir/article-1-1543-en.html
URL: http://opsi.ir/article-1-1543-en.html
1- Physics Department, Sciences Faculty, University of Isfahan
Abstract: (2302 Views)
Notch filter is an optical instrument that its performance is based on the Interference phenomenon. The Notch filters, (reflective filter) act is that it reflects a wavelength range around the central wavelength and completely passes the rest of the wavelengths. One of the methods for producing these types of fillers is to use a pair of alternating quarter-wavelengths thin films in the form of (aHbL)s. Although this design has problems like high-level reflections in the transmission region. In this research it has been tried to study and simulate the structures (aHbL)s, with using different materials and thicknesses to increase the central reflection, also reduce the bandwidth of the reflection around the central wavelength has been reduced.
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