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In this work, we study a multichannel filter by using one-dimensional photonic crystal (1DPC) based on Thue-Morse sequence (TMS). We use a dielectric defect layer between binary sequence cells with a TMS structure. First, we show transmission in terms of wavelength for the structure without defect layers. Then, we plot transmission in terms of wavelength for a different number of defect layer periods (N) in normal incidence. The analysis shows that there are two photonic bang gaps (PBG) in visible and infrared regions and two defect modes in each one for N = 1. Moreover, the number of defect modes is increased by increasing N . So, by tuning them, this structure can be used as a multi-channel filter within an optical wavelength range.

MODELING OF MULTICHANNEL FILTER USING DEFECTIVE NANO PHOTONIC CRYSTAL WITH THUE-MORSE STRUCTURE