Effect of the defect on the focusing in a two-dimensional photonic-crystal-based flat lens

被引：0

作者：

冯志芳 ^{[1
]}

王秀国 ^{[2
]}

李志远 ^{[3
]}

张道中 ^{[3
]}

机构：

[1] Beijing University of Chemical Technology

[2] School of Applied Mathematics,Central University of Finance and Economics

[3] Optical Physics Laboratory,Institute of Physics,Chinese Academy of Sciences

来源：

Chinese Physics B | 2008年 / 17卷 / 03期

基金：

中国国家自然科学基金;

关键词：

flat lens; defect; photonic crystal;

D O I：

暂无

中图分类号：

O77 [晶体缺陷];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

We have investigated in detail the influence of defect on the focusing of electromagnetic waves in a two-dimensional photonic-crystal flat lens by using the finite-difference time-domain method.The result shows that many focusings can be observed at the symmetrical positions when a defect is introduced into the lens.Furthermore,the wave-guides in the lens can confine the transmission wave effectively and improve the quality of the focusing.

引用

页码：1101 / 1106

页数：6

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