Effect of radiation damping on the spectral response of plasmonic components

被引：120

作者：

Kats, Mikhail A. ^{[1
]}

Yu, Nanfang ^{[1
]}

Genevet, Patrice ^{[1
,2
,3
]}

Gaburro, Zeno ^{[1
,4
]}

Capasso, Federico ^{[1
]}

机构：

[1] Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA

[2] Texas A&M Univ, Inst Quantum Studies, College Stn, TX 77843 USA

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

[4] Univ Trent, Dipartimento Fis, I-38100 Trento, Italy

来源：

OPTICS EXPRESS | 2011年 / 19卷 / 22期

基金：

美国国家科学基金会;

关键词：

LIGHT-SCATTERING; NANOPARTICLES; ANTENNAS;

D O I：

10.1364/OE.19.021748

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We explore the relationship between the near-field enhancement, absorption, and scattering spectra of localized plasmonic elements. A simple oscillator model including both internal and radiative damping is developed, and is shown to accurately capture the near-and far-field spectral features of linear optical antennas, including their phase response. At wavelengths away from the interband transitions of the metal, we expect the absorption of a plasmonic element to be red-shifted relative to the scattering, and the near-field to be red-shifted relative to both. (C) 2011 Optical Society of America

引用

页码：21748 / 21753

页数：6

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