Role of radiation and surface plasmon polaritons in the optical interactions between a nano-slit and a nano-groove on a metal surface

被引：48
作者：
Chen, Long [1 ]
Robinson, Jacob T. [1 ]
Lipson, Michal [1 ]
机构：
[1] Cornell Univ, Sch Elect & Comp Engn, Ithaca, NY 14853 USA
来源：
OPTICS EXPRESS | 2006年 / 14卷 / 26期
关键词：
D O I：
10.1364/OE.14.012629
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Through full-vectorial simulations and analytical models, we investigate the role of radiation and surface plasmon polaritons (SPP) in the optical interaction between a nano-slit and a parallel nano-groove on a metal surface. We quantitatively confirm the radiaton as the interaction mechanism in perfect electrical conductors (PEC), and verify the role of radiation and SPP in the slit-groove interaction in silver. While the contribution of SPP dominates for the nano-slit and nano-groove placed far apart, the radiation plays a significant role for the nano-slit and nano-groove with smaller separations comparable to one wavelength. We present the first quantitative of the individual contributions of the radiation and SPP on the transmission through the nano-slit. (C) 2006 Optical Society of America.
引用
收藏
页码：12629 / 12636
页数：8
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