Propagation length of surface plasmons in a metal film with roughness

被引：94

作者：

Kolomenski, Andrei ^{[1
]}

Kolomenskii, Alexandre ^{[1
]}

Noel, John ^{[1
]}

Peng, Siying ^{[1
]}

Schuessler, Hans ^{[1
]}

机构：

[1] Texas A&M Univ, Dept Phys, College Stn, TX 77843 USA

来源：

APPLIED OPTICS | 2009年 / 48卷 / 30期

基金：

美国国家科学基金会;

关键词：

DISPERSION-RELATION; RESONANCE; SCATTERING; ABSORPTION; SENSOR; POLARITONS; WAVES;

D O I：

10.1364/AO.48.005683

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The propagation of laser-excited surface plasmons along a gold film with surface roughness is directly observed via scattered light. The attenuation length of surface plasmons in a broad wavelength interval is calculated for smooth gold and silver films. The surface roughness, which was characterized with an AFM, introduces corrections to the attenuation length, angular dependence of the surface plasmon resonance, and the effective dielectric constant of the metal film. These corrections are also taken into account and discussed. (C) 2009 Optical Society of America

引用

页码：5683 / 5691

页数：9

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