A few points on omnidirectional band gaps in one-dimensional photonic crystals

被引：22
|
作者：
Wang, Z. [1 ]
Liu, D. [1 ]
机构：
[1] Beijing Normal Univ, Dept Phys, Appl Opt Beijing Area Major Lab, Beijing 100875, Peoples R China
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2007年 / 86卷 / 03期
关键词：
D O I：
10.1007/s00340-006-2479-4
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The universal condition for the formation of omnidirectional band gaps (OBG) in photonic crystal (PC) was derived with consideration of permeability of the materials. And it was found that there are four kinds of PCs: one of them has no OBG, and one always possesses OBG. For the other two kinds of PCs, there are OBG for only TM or TE waves respectively. Moreover, in all PCs, the OBG can be broadened by decreasing the refractive index of the ambient medium or/and increasing the contrast between the wave impedances of the component materials of the PC.
引用
收藏
页码：473 / 476
页数：4
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