二维光子晶体异质结Order-N数值研究  

Numerical Research of Two-Dimensional Photonic Crystal Heterostructures with Order-N Method

作　　者：汤炳书[1] 李正华[2] 刘丽丽[1] 沈廷根[1] 

机构地区：[1]连云港师范高等专科学校物理系,江苏连云港222006 [2]江苏大学应用物理研究所

出　　处：《中国激光》2006年第9期1195-1199,共5页Chinese Journal of Lasers

基　　金：江苏省自然科学基金(BK2004059)资助项目

摘　　要：把多重散射(Order-N)方法用于二维光子晶体组成异质结的传输特性研究,分别数值研究了折射率异质结、柱体形状异质结、晶格结构异质结三种情况下的透射特性,数值结果指出在折射率异质时出现类似于电子型半导体的单向导光性能,并作了简单理论类比分析。进一步对三种异质结进行研究,得出传导模的出现不只是晶格结构畸变一种情况可以产生,其他两种异质结也能产生传导模。The order-N method is used to study the transmission properties of heterostructures of two-dimensional （2D） photonic crystal. Three different heterostructures, i. e. , refractive index, polers shape and lattice structure heterostructures are numerically calculated respectively. Numerical results show the property of single direction guidance of light, which is similar to that of the semiconductors of electronic type. Analogous analyzing between these two phenomena was made with a simple theory. It is further shown that guide modes appear not only in the case of lattice structure aberrance but also in the other two cases.

关 键 词：光电子学 二维光子晶体异质结 多重散射法 禁带 传导模 

分 类 号：O734[理学—晶体学]