Fano resonances in dipole-quadrupole plasmon coupling nanorod dimers
Fano resonances in dipole-quadrupole plasmon coupling nanorod dimers
复制标题
偶极-四极等离子体耦合纳米棒二聚体中的法诺共振
DOI：
10.1364/ol.36.001542
复制
发表时间：
2011-05-01
期刊：
影响因子：
3.6
通讯作者：
Wang, Qu-Quan
中科院分区：
文献类型：
--
作者：
Yang, Zhong-Jian;Zhang, Zong-Suo;Wang, Qu-Quan
We theoretically investigate the plasmon coupling in metallic nanorod dimers. A pronounced dip is found in the extinction spectrum due to plasmonic Fano resonance, which is induced by destructive interference between the bright dipole plasmon of a short nanorod and the dark quadrupole plasmon of a long nanorod. This Fano interference can also be explained as the coupling between the bright and dark modes both supported by the whole dimer. The Fano resonance can be tuned by adjusting the spatial or spectral separation between two nanorods in the dimer. (C) 2011 Optical Society of America
