Spectral tunability of a plasmonic antenna with a dielectric nanocrystal

被引：18

作者：

Alaverdyan, Yury ^{[1
]}

Vamivakas, Nick ^{[1
]}

Barnes, Joshua ^{[1
]}

Lebouteiller, Claire ^{[1
]}

Hare, Jack ^{[1
]}

Atatuere, Mete ^{[1
]}

机构：

[1] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

来源：

OPTICS EXPRESS | 2011年 / 19卷 / 19期

基金：

欧洲研究理事会; 英国工程与自然科学研究理事会;

关键词：

OPTICAL-PROPERTIES; SILVER ELECTRODE; SINGLE; NANOPARTICLES; NANOANTENNAS; ENHANCEMENT; SENSITIVITY; EMISSION; SENSORS;

D O I：

10.1364/OE.19.018175

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We show that the positioning of a nanometer length scale dielectric object, such as a diamond nanocrystal, in the vicinity of a gold bowtie nanoantenna can be used to tune the plasmonic mode spectrum on the order of a linewidth. We further show that the intrinsic luminescence of gold enhanced in the presence of nanometer-scale roughness couples efficiently to the plasmon mode and carries the same polarization anisotropy. Our findings have direct implications for cavity quantum electrodynamics related applications of hybrid antenna-emitter complexes. (C) 2011 Optical Society of America

引用

页码：18175 / 18181

页数：7

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