A multichannel filter based on ternary nano metallo-dielectric photonic crystal with Thue-Morse defect layer structure

In this paper, we have investigated a multichannel filter by using one dimensional ternary photonic crystal (1DTPC). We have used Thue-Morse sequence (TMS) for defect layer. To model the multichannel filter, we have checked the effect of different number of unit cells (N) and TMS in defect layer (m). First, we have plotted transmission in terms of wavelength with different N in TPC. Then, we have shown transmission in terms of wavelength for different m in normal incidence. The analysis shows that there are three photonic bang gaps (PBG) with three channels in visible and two PBG with three channels in infrared regions in transverse electric (TE) polarizations. As we have shown the transmission value decreased by increasing N. Moreover, the number of channels increased by increasing m in both visible and infrared regions. So, by tuning them, this structure can use as multichannel filter within an optical wavelength range.