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

被引：373

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

页码：515 / 518

页数：4