On- and off-axis second harmonic generation from an array of gold metallic nanocylinders

被引：10

作者：

Awada, Ch. ^{[1
]}

Kessi, F. ^{[1
]}

Jonin, Ch. ^{[1
]}

Adam, P. M. ^{[2
]}

Kostcheev, S. ^{[2
]}

Bachelot, R. ^{[2
]}

Royer, P. ^{[2
]}

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

Benichou, E. ^{[1
]}

Bachelier, G. ^{[1
]}

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

机构：

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

[2] Univ Technol Troyes, Lab Nanotechnol & Instrumentat Opt, Inst Charles Delaunay, CNRS,FRE 2848, F-10010 Troyes, France

来源：

JOURNAL OF APPLIED PHYSICS | 2011年 / 110卷 / 02期

关键词：

HYPER RAYLEIGH-SCATTERING; NANOPARTICLE ARRAYS; SENSITIVITY; MICROSCOPY;

D O I：

10.1063/1.3603007

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The optical second harmonic (SH) response from gold metallic nanocylinders with diameters of 80 and 120 nm arranged in hexagonal arrays has been determined as a function of the input fundamental polarization angle for the on- and off-axis transmission geometries and crossed output polarization configurations. For the on-axis transmission geometry, the nonlinear response of the nanocylinders is shown to be mainly incoherent, of pure electric dipole nature and arising from the breaking of the centrosymmetric shape of the body of the cylinders in a plane parallel to the substrate surface. Small angle off-axis experiments however show that the coherent contribution to the nonlinear response is size dependent suggesting that, besides the out-of-plane nonlinearity, retardation effects may also play a nonnegligible role. (C) 2011 American Institute of Physics. [doi:10.1063/1.3603007]

引用

页数：6