Resonance mode of an equilateral triangle with triangle notch

被引：0
|
作者：
Zhang Zhi-Dong [1 ]
Gao Si-Min [1 ]
Wang Hui [1 ]
Wang Hong-Yan [1 ]
机构：
[1] Southwest Jiaotong Univ, Sch Phys Sci & Technol, Chengdu 610031, Peoples R China
来源：
ACTA PHYSICA SINICA | 2014年 / 63卷 / 12期
关键词：
local surface plasmon; extinction spectra; Fano resonance; discrete dipole approximation method; DISCRETE-DIPOLE-APPROXIMATION; FANO RESONANCES; SYMMETRY-BREAKING; LIGHT-SCATTERING; GOLD NANORODS; NANOSTRUCTURES; NANOPARTICLES; NANOPRISMS; ARRAYS;
D O I：
10.7498/aps.63.127301
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A symmetrically breaking nanostructure, equilateral triangle with triangle notch, is designed. The extinction spectrum and surface electric field distribution on the structure surface are investigated by the discrete dipole approximation method. The results show that a Fano resonance line-shape occurs in the extinction spectrum, which results from the interference between the bonding and antibonding hybridized plasmon resonance. The effects of the structural parameters of the symmetrically breaking nanostructure on resonance mode are also studied.
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页数：6
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