Influence of incident angle on the defect mode of locally doped photonic crystal  

作　　者：王瑾 温廷敦 许丽萍 刘祖凡 

机构地区：[1]Department of Physics, North University of China [2]China Aviation Lithium Battery Co., Ltd

出　　处：《Journal of Semiconductors》2013年第11期11-14,共4页半导体学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.60776062,50730009)

摘　　要：By means of a transfer matrix method, this paper deduces the transmittance calculation equation of light travelling in locally doped （including one defect layer） mirror heterostructure （ABCCBA）PD（ABCCBA）q photonic crystals. In the cases of defect layers being either introduced or not introduced, an ORIGIN simulation shows the influence of incident angle change on the number of photon band gap, bandwidth and defect mode numbers. Studies indicate that when such photonic crystals have 8 mirror cycles and the thickness of defect layer D meets nDdD = X0/2 or nodD = 4）~0, the photonic crystal defect mode transmission peak changes significantly. Also, with the change of incident angle, the number of defect mode transmission peaks changes. By altering incident angle and defect layer thickness, we can get photon band gaps and defect mode transmission peaks at different frequency domains and different relative angular frequencies. This provides theoretical reference for achieving light wave multi-channel filtering and tunable filtering.By means of a transfer matrix method, this paper deduces the transmittance calculation equation of light travelling in locally doped （including one defect layer） mirror heterostructure （ABCCBA）PD（ABCCBA）q photonic crystals. In the cases of defect layers being either introduced or not introduced, an ORIGIN simulation shows the influence of incident angle change on the number of photon band gap, bandwidth and defect mode numbers. Studies indicate that when such photonic crystals have 8 mirror cycles and the thickness of defect layer D meets nDdD = X0/2 or nodD = 4）~0, the photonic crystal defect mode transmission peak changes significantly. Also, with the change of incident angle, the number of defect mode transmission peaks changes. By altering incident angle and defect layer thickness, we can get photon band gaps and defect mode transmission peaks at different frequency domains and different relative angular frequencies. This provides theoretical reference for achieving light wave multi-channel filtering and tunable filtering.

关 键 词：photonic crystal defect mode incident angle locally doped transfer matrix method 

分 类 号：O734[理学—晶体学]