Depolarized hyper-Rayleigh scattering from copper nanoparticles

被引：35

作者：

Chandra, Manabendra

Indi, S. S.

Das, Puspendu K. ^{[1
]}

机构：

[1] Indian Inst Sci, Dept Inorgan & Phys Chem, Bangalore 560012, Karnataka, India

[2] Indian Inst Sci, Dept Microbiol & Cell Biol, Bangalore 560012, Karnataka, India

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2007年 / 111卷 / 28期

关键词：

D O I：

10.1021/jp071847l

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：

In this paper we report the results of polarization resolved hyper-Rayleigh scattering measurements of copper nanoparticles of 5-55 nm size. The polar plot of polarization-resolved second harmonic intensity against polarization angle from the copper nanoparticles resembles the pattern seen from a dipolar source. The measured first hyperpolarizability values scale quadratically with the particle size, which implies that the second harmonic response from the copper nanoparticles results from symmetry breaking at the surface of the particle rather than in the bulk.

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页码：10652 / 10656

页数：5

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