Tunable composite nanoparticle for plasmonics

被引：128

作者：

Leveque, Gaeetan ^{[1
]}

Martin, Olivier J. F. ^{[1
]}

机构：

[1] Ecole Polytech Fed Lausanne, Nanophoton & Metrol Lab, CH-1015 Lausanne, Switzerland

来源：

OPTICS LETTERS | 2006年 / 31卷 / 18期

关键词：

SURFACE;

D O I：

10.1364/OL.31.002750

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a numerical study of the tunability properties of a plasmonic subwavelength particle deposited on a metallic slab. The particle is composed of a metallic part, supporting a localized plasmon mode, separated from the slab by a dielectric spacer. It is shown that the position of the resonance wavelength can be modified over a large spectral range by changing either the spacer thickness by a few tens of nanometers or its susceptibility within the range of usual dielectrics. A linear relation is observed between the resonance wavelength and the spacer permittivity. (c) 2006 Optical Society of America.

引用

页码：2750 / 2752

页数：3

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