Fano Resonances in Individual Coherent Plasmonic Nanocavities

被引：630

作者：

Verellen, Niels ^{[3
]}

Sonnefraud, Yannick ^{[1
]}

Sobhani, Heidar ^{[2
]}

Hao, Feng ^{[2
]}

Moshchalkov, Victor V.

Van Dorpe, Pol

Nordlander, Peter ^{[2
]}

Maier, Stefan A. ^{[1
]}

机构：

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

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

[3] IMEC, B-3001 Louvain, Belgium

来源：

NANO LETTERS | 2009年 / 9卷 / 04期

基金：

英国工程与自然科学研究理事会;

关键词：

ENHANCED RAMAN-SCATTERING; SYMMETRY-BREAKING; METAMATERIAL; SILVER;

D O I：

10.1021/nl9001876

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We observe the appearance of Fano resonances in the optical response of plasmonic nanocavities due to the coherent coupling between their superradiant and subradiant plasmon modes. Two reduced-symmetry nanostructures probed via confocal spectroscopy, a dolmen-style slab arrangement and a ring/disk dimer, clearly exhibit the strong polarization and geometry dependence expected for this behavior at the individual nanostructure level, confirmed by full-field electrodynamic analysis of each structure. In each case, multiple Fano resonances occur as structure size is increased.

引用

页码：1663 / 1667

页数：5

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