Symmetry Breaking in Plasmonic Nanocavities: Subradiant LSPR Sensing and a Tunable Fano Resonance

被引：933

作者：

Hao, Feng ^{[1
]}

Sonnefraud, Yannick ^{[2
]}

Van Dorpe, Pol ^{[3
]}

Maier, Stefan A. ^{[2
]}

Halas, Naomi J. ^{[1
,4
,5
]}

Nordlander, Peter ^{[1
,4
]}

机构：

[1] Rice Univ, Dept Phys & Astron, Lab Nanophoton, Houston, TX 77005 USA

[2] Univ London Imperial Coll Sci Technol & Med, Dept Phys, Expt Solid State Grp, London SW7 2AZ, England

[3] IMEC, B-3001 Leuven, Belgium

[4] Rice Univ, Dept Elect & Comp Engn, Houston, TX 77005 USA

[5] Rice Univ, Dept Chem, Houston, TX 77005 USA

来源：

NANO LETTERS | 2008年 / 8卷 / 11期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1021/nl802509r

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A metallic nanostructure consisting of a disk inside a thin ring supports superradiant and very narrow subradiant modes. Symmetry breaking in this structure enables a coupling between plasmon modes of differing multipolar order, resulting in a tunable Fano resonance. The LSPR sensitivities of the subradiant and Fano resonances are predicted to be among the largest yet for individual nanostructures.

引用

页码：3983 / 3988

页数：6

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