Frequency Analysis of Electromagnetic Waves in Tripartite Photonic Crystals with Adjustable Part Lengths

Abstract

In this study, electromagnetic wave propagation frequencies are investigated in four different photonic crystal structures, three of which are tripartite and one of which is bipartite. In addition, the effects of part lengths and material property parameters (ε, µ) of these structures on electromagnetic wave frequencies are examined. The photonic crystal structures are one-dimensional (1D) and the parts of these structures have different lengths. Differences in the part lengths allow the electromagnetic wave frequencies to be adjusted. The material property parameters of each part of the photonic crystal structures change in the x-axis direction and the default values of these parameters theoretically change from 1 to 2. The values for the first three modes of electromagnetic wave frequencies obtained for four different photonic crystal structures are different from each other. The lowest values of the electromagnetic wave frequencies are obtained for the first photonic crystal structure (S1) with the shortest first and second part lengths.