Research on Transmissivity and Defect Model of One-Dimensional Photon Crystals for Non-Vertical Incident

In this paper, we study the transmissivity of one-dimensional photonic crystals (PCs) for different incidence angles, and find that the band gaps become blue shift and the numbers of band gaps increase when the incidence angles increase. We study the position and thickness of defect layer effect on the transmissivity without absorption coefficient. Then we study the transmissivity characteristic by changing the absorption coefficient k, and find as the absorption coefficient increases, the defect model decreases and these effects characteristic have application value.