光子晶体带隙和缺陷的特性  

Characteristics of Band Gap and Defect of Photonic Crystals

作　　者：齐京仁[1] 

机构地区：[1]临沂大学沂水校区商贸系

出　　处：《光谱实验室》2012年第5期3235-3237,共3页Chinese Journal of Spectroscopy Laboratory

摘　　要：基于平面波展开法,以介电常数分别为1F/m和13F/m的物质构成三角晶格二维光子晶体,改变空气孔半径r与晶格常数a之间的大小,数值模拟得到r=0.48a时形成最大完全带隙0.4298—0.5192Hz。移去中心圆柱形成缺陷,数值模拟得到不能形成完全带隙结构,研究结论为光子晶体器件的制作提供参考。Based on the plane wave expansion method,the triangular lattice two-dimensional photonic crystals were respectively formed by material with dielectric constant of 1F/m and 13F/m,changing size of the air hole radius r and lattice constant of a,the largest complete band gap of 0.4298—0.5192Hz was formed by numerical simulation when r=0.48a.The center of cylinder was removed to defect,numerical simulation can not form a complete band gap structure.The conclusion of the study provides reference for the fabrication of photonic crystal devices.

关 键 词：光子晶体 平面波展开法 三角晶格 完全带隙 缺陷结构 

分 类 号：O431.1[机械工程—光学工程] O672.31[理学—光学]