Surface Plasmon Resonances in Strongly Coupled Gold Nanosphere Chains from Monomer to Hexamer

被引：195
|
作者：
Barrow, Steven J. [1 ,2 ]
Funston, Alison M. [3 ]
Gomez, Daniel E. [4 ]
Davis, Tim J. [5 ]
Mulvaney, Paul [1 ,2 ]
机构：
[1] Univ Melbourne, Sch Chem, Parkville, Vic 3010, Australia
[2] Univ Melbourne, Inst Bio21, Parkville, Vic 3010, Australia
[3] Monash Univ, Sch Chem, Clayton, Vic 3800, Australia
[4] Univ Melbourne, Sch Phys, Parkville, Vic 3010, Australia
[5] CSIRO, Div Engn & Mat Sci, Clayton, Vic 3169, Australia
来源：
NANO LETTERS | 2011年 / 11卷 / 10期
关键词：
Surface plasmon; waveguide; nanoparticle; coupling; DNA; assembly; ELECTROMAGNETIC ENERGY-TRANSPORT; METAL-NANOPARTICLE CHAINS; ELECTRON-MICROSCOPY; HYBRIDIZATION; SPECTROSCOPY; ARRAYS; MODEL;
D O I：
10.1021/nl202080a
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We present experimental data on the light scattering properties of linear chains of gold nanoparticles with up to six nanoparticles and an interparticle spacing of 1 nm. A red shift of the surface plasmon resonance with increasing chain length is observed. An exponential model applied to the experimental data allows determination of an asymptotic maximum resonance at a chain length of 10-12 particles. The optical data are compared with analytical and numerical calculation methods (EEM and BEM).
引用
收藏
页码：4180 / 4187
页数：8
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