Particle plasmon resonances in L-shaped gold nanoparticles

被引：42

作者：

Husu, Hannu ^{[1
]}

Makitalo, Jouni ^{[1
]}

Laukkanen, Janne ^{[2
]}

Kuittinen, Markku ^{[2
]}

Kauranen, Martti ^{[1
]}

机构：

[1] Tampere Univ Technol, Dept Phys, Opt Lab, FI-33101 Tampere, Finland

[2] Univ Eastern Finland, Dept Phys & Math, FI-80101 Joensuu, Finland

来源：

OPTICS EXPRESS | 2010年 / 18卷 / 16期

基金：

芬兰科学院;

关键词：

NONLINEAR-OPTICAL RESPONSES; DISPERSION;

D O I：

10.1364/OE.18.016601

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present an extensive experimental and theoretical study of the particle plasmon resonances of L-shaped gold nanoparticles. For the small characteristic size of the particles, we observe more higher-order resonances than previously from related shapes, and show that a short-wavelength resonance arises from the particle width and is not the suggested volume plasmon. We interpret the resonances through the local vector electric field in the structure and by fully taking into account the particle symmetry. (C) 2010 Optical Society of America

引用

页码：16601 / 16606

页数：6

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