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
收藏
页码：3983 / 3988
页数：6
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