Optical properties of two interacting gold nanoparticles

被引：1256
|
作者：
Rechberger, W
Hohenau, A
Leitner, A
Krenn, JR
Lamprecht, B
Aussenegg, FR
机构：
[1] Karl Franzens Univ Graz, Inst Expt Phys, A-8010 Graz, Austria
[2] Erwin Schrodinger Inst Nanoscale Res, A-8010 Graz, Austria
来源：
OPTICS COMMUNICATIONS | 2003年 / 220卷 / 1-3期
关键词：
gold nanoparticles; optical properties;
D O I：
10.1016/S0030-4018(03)01357-9
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We study surface plasmon excitation in pairs of identical Au nanoparticles by optical transmission spectroscopy. The samples produced by electron beam lithography consist of 2D particle arrangements with varying interparticle distance. With decreasing interparticle distance the surface plasmon resonance shifts to longer wavelengths for a polarization direction parallel to the long particle pair axis whereas a blueshift is found for the orthogonal polarization. These experimental findings can be explained by a dipolar interaction mechanism. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：137 / 141
页数：5
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