Resonant tunneling of light through thin metal films via strongly localized surface plasmons

被引:128
|
作者
Tan, WC [1 ]
Preist, TW [1 ]
Sambles, RJ [1 ]
机构
[1] Univ Exeter, Sch Phys, Thin Film Photon Grp, Exeter EX4 4QL, Devon, England
关键词
D O I
10.1103/PhysRevB.62.11134
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We present a theoretical model of the optical response of a silver film having narrow-grooved zero-order gratings on both sides. It is found that incident p-polarized photons can resonantly tunnel through such a metal film via exciting standing-wave surface plasmon-polariton (SPF) modes localized in the grooves of the two opposite surfaces. This leads to strong transmission peaks in the visible and ultraviolet regions, while for s-polarized photons the film acts asa nearly perfect mirror.
引用
收藏
页码:11134 / 11138
页数:5
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