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year 28, Issue 2 (ICOP & ICPET 2022 2022)
ICOP & ICPET _ INPC _ ICOFS 2022, 28(2): 517-520 |
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vahedi A, vahedi F. Evaluation of some affecting factors on liquid crystal / photonic crystal adjustable filters. ICOP & ICPET _ INPC _ ICOFS 2022; 28 (2) :517-520
URL: http://opsi.ir/article-1-2595-en.html
URL: http://opsi.ir/article-1-2595-en.html
Abstract: (739 Views)
In this research, multi-channel adjustable filters based on one-dimensional photonic crystals contain of anisotropic liquid crystal have been reviewed and studied. Firstly, by entering parameters such as liquid crystal refractive index, thickness of triple photonic crystal layers, metal and defect layer thickness, and also by selecting the appropriate frequency area, the transmittance matrix of system is calculated, then after transmittance is simulated as a function of frequency. The results show that for frequencies below 2000 THz and N= 3 layers, structure has the maximum modes and N = 6 has the lowest transmittance. By increasing the thickness of the liquid crystal to 2 micrometers, the number of modes has increased from 4 filtering modes to 7 modes, also peak of modes increase intensely in the middle frequency.
Type of Study: Experimental |
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