Multipolar second-harmonic generation in noble metal nanoparticles

被引：128

作者：

Bachelier, Guillaume ^{[1
]}

Russier-Antoine, Isabelle ^{[1
]}

Benichou, Emmanuel ^{[1
]}

Jonin, Christian ^{[1
]}

Brevet, Pierre-Francois ^{[1
]}

机构：

[1] Univ Lyon 1, Lab Spectrometrie Ion & Mol, CNRS UMR 5579, F-69622 Villeurbanne, France

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2008年 / 25卷 / 06期

关键词：

D O I：

10.1364/JOSAB.25.000955

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Second-harmonic generation from noble metal nanoparticles with a noncentrosymmetrical shape is theoretically investigated by using finite element method simulations. The relative weight of the dipolar and quadrupolar responses is investigated in terms of both light polarization and size dependence of the harmonic scattered intensity. It is shown that, even for small deformations as compared with purely spherical particles, the dipolar response dominates and scales as the nanoparticle surface area squared. The difference between gold and silver metal nanoparticles is also addressed. (C) 2008 Optical Society of America.

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页码：955 / 960

页数：6

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