Retardation-induced plasmon resonances in coupled nanoparticles

被引:174
作者
Kottmann, JP [1 ]
Martin, OJF [1 ]
机构
[1] ETH Zentrum, Swiss Fed Inst Technol, Electromat Fields & Microwave Elect Lab, CH-8092 Zurich, Switzerland
关键词
D O I
10.1364/OL.26.001096
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We study the coupling induced by retardation effects when two plasmon-resonant nanoparticles are interacting. This coupling leads to an additional resonance, the strength of which depends on a subtle balance between particle separation and size. The scattering cross section and the near field associated with this coupled resonance are studied for cylindrical particles in air and in water. Implications for surface-enhanced Raman scattering and nano-optics are discussed. (C) 2001 Optical Society of America.
引用
收藏
页码:1096 / 1098
页数:3
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