Radiation damping in metal nanoparticle pairs

被引：145

作者：

Dahmen, Christian ^{[1
]}

Schmidt, Benjamin ^{[1
]}

von Plessen, Gero ^{[1
]}

机构：

[1] Rhein Westfal TH Aachen, Inst Phys, IA, D-52056 Aachen, Germany

来源：

NANO LETTERS | 2007年 / 7卷 / 02期

关键词：

D O I：

10.1021/nl062377u

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The radiation damping rate of plasmon resonances in pairs of spherical gold nanoparticles is calculated. The radiative line width of the plasmon resonance indicates significant far-field coupling between the nanoparticles over distances many times the particle diameter. The radiation damping of the coupled particle-plasmon mode alternates between superradiant and subradiant behavior when the particle spacing is varied. At small particle spacings where near-field coupling occurs, the radiation damping rate lies far below that of an isolated particle.

引用

页码：318 / 322

页数：5

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