Observation of intrinsic size effects in the optical response of individual gold nanoparticles

被引：378
作者：
Berciaud, S
Cognet, L
Tamarat, P
Lounis, B
机构：
[1] CNRS, UMR 5798, Ctr Phys Mol Opt & Hertzienne, F-33405 Talence, France
[2] Univ Bordeaux 1, F-33405 Talence, France
来源：
NANO LETTERS | 2005年 / 5卷 / 03期
关键词：
D O I：
10.1021/nl050062t
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The photothermal heterodyne imaging method is used to study for the first time the absorption spectra of individual gold nanoparticles with diameters down to 5 nm. Intrinsic size effects that result in a broadening of the surface plasmon resonance are unambiguously observed. Dispersions in the peak energies and homogeneous widths of the single-particle resonances are revealed. The experimental results are analyzed within the frame of Mie theory.
引用
收藏
页码：515 / 518
页数：4
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