Multiple directional beaming effect of metallic subwavelength slit surrounded by periodically corrugated grooves

被引：34
作者：
Liu, Yugang [1 ]
Shi, Haofei [1 ]
Wang, Changtao [1 ]
Du, Chunlei [1 ]
Luo, Xiangang [1 ]
机构：
[1] Chinese Acad Sci, Inst Opt & Elect, State Key Lab Opt Technol Microfabricat, Chengdu 610209, Peoples R China
来源：
OPTICS EXPRESS | 2008年 / 16卷 / 07期
关键词：
D O I：
10.1364/OE.16.004487
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
It is demonstrated that multiple directional beaming effect can be realized by a metallic subwavelength slit surrounded by finite number of grooves based on mode expansion method. Each of the directional beaming is formed by superimposing two diffraction orders of spoof surface plasmon excited on the two corrugated sides of the slit. This delivers high contrast and considerably uniform energy distribution for the beaming directions. (C) 2008 Optical Society of America.
引用
收藏
页码：4487 / 4493
页数：7
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