Coherent acoustic mode oscillation and damping in silver nanoparticles

被引：209

作者：

Del Fatti, N ^{[1
]}

Voisin, C ^{[1
]}

Chevy, F ^{[1
]}

Vallée, F ^{[1
]}

Flytzanis, C ^{[1
]}

机构：

[1] Ecole Polytech, CNRS, Opt Quant Lab, F-91128 Palaiseau, France

来源：

JOURNAL OF CHEMICAL PHYSICS | 1999年 / 110卷 / 23期

关键词：

D O I：

10.1063/1.479089

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Using a femtosecond pump-probe technique, the fundamental mechanical radial mode of silver nanoparticles is coherently excited and probed via its interaction with the electron gas. The mechanical oscillations are launched by an indirect displacive process and are detected via the induced modulation of the surface plasmon resonance frequency. The measured fundamental radial mode period and damping time are found to be proportional to the nanoparticle radius in the range of 3-15 nm, in agreement with theoretical predictions. (C) 1999 American Institute of Physics. [S0021-9606(99)70223-0].

引用

页码：11484 / 11487

页数：4

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