Direct observation of surface plasmon-polariton dispersion

被引：36
作者：
Giannattasio, A [1 ]
Barnes, WL [1 ]
机构：
[1] Univ Exeter, Sch Phys, Exeter EX4 4QL, Devon, England
来源：
OPTICS EXPRESS | 2005年 / 13卷 / 02期
关键词：
D O I：
10.1364/OPEX.13.000428
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We describe a method to observe the directional emission of electromagnetic radiation produced by the radiative decay of surface plasmon-polaritons (SPPs) that allows the dispersion of the modes in k-space to be directly visualized. The method presented here opens up the possibility of characterizing the effect of a wide range of surface morphologies on SPP dispersion. As an example we show the formation of a stop-band for SPPs when the metal surface is modulated in the form of a diffraction grating. (C) 2005 Optical Society of America.
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收藏
页码：428 / 434
页数：7
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