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.
出处
《光谱实验室》
CAS
CSCD
2012年第5期3235-3237,共3页
Chinese Journal of Spectroscopy Laboratory
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
Photonic Crystals
Plane Wave Expansion Method
Triangular Lattice
Complete Band Gap
Defect Structure
