Interference between Selected Dipoles and Octupoles in the Optical Second-Harmonic Generation from Spherical Gold Nanoparticles

被引：140

作者：

Butet, J. ^{[1
]}

Bachelier, G. ^{[1
]}

Russier-Antoine, I. ^{[1
]}

Jonin, C. ^{[1
]}

Benichou, E. ^{[1
]}

Brevet, P. -F. ^{[1
]}

机构：

[1] Univ Lyon 1, CNRS, UMR 5579, LASIM, F-69622 Villeurbanne, France

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 105卷 / 07期

关键词：

HYPER-RAYLEIGH-SCATTERING; NOBLE-METAL NANOPARTICLES; SMALL-PARTICLE LIMIT; CENTROSYMMETRIC MATERIAL; PLASMON POLARITONS; SILVER;

D O I：

10.1103/PhysRevLett.105.077401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Optical second-harmonic generation from gold nanoparticles is investigated both experimentally and theoretically. The contribution of octupoles is reported for the first time in the second-harmonic emission pattern, by using an harmonic polarization in the scattering plane. The experimental results presented here for particle sizes up to 100 nm are in excellent agreement with finite element method simulations involving the normal surface term only in the nonlinear polarization source. In addition, analytical calculations based on nonlinear Mie scattering theory clearly evidence the constructive and destructive interferences occurring between the dipolar and octupolar responses selected with this polarization configuration.

引用

页数：4

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