Experimental evaluation of reflectance of surface plasmon polaritons at metal step barrier

被引:3
|
作者
Okamoto, T [1 ]
Kakutani, K [1 ]
Yoshizaki, T [1 ]
Haraguchi, M [1 ]
Fukui, M [1 ]
机构
[1] Univ Tokushima, Fac Engn, Dept Opt Sci & Technol, Tokushima 7708506, Japan
关键词
plasmons; polaritons; metallic surfaces;
D O I
10.1016/j.susc.2003.08.012
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
We have proposed a way to evaluate the reflectance of surface plasmon polaritons (SPP) at a Ag step barrier from an experiment using the attenuated total reflection structure consisting of ultra-thin metal films sandwiched by dielectrics with nearly identical refractive index. At a wavelength of 632.8 nm, for a long-range SPP (L-SPP) excited in a Ag film of 5.7 nm in thickness, the reflectance at Ag step barriers of 766 nm in height was evaluated to be 7.9 x 10(-2). (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码:67 / 73
页数:7
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