Linear and second-order nonlinear optical properties of arrays of noncentrosymmetric gold nanoparticles

被引：69

作者：

Tuovinen, H

Kauranen, M

Jefimovs, K

Vahimaa, P

Vallius, T

Turunen, J

Tkachenko, NV

Lemmetyinen, H

机构：

[1] Tampere Univ Technol, Inst Phys, Opt Lab, FIN-33101 Tampere, Finland

[2] Univ Joensuu, Dept Phys, FIN-80101 Joensuu, Finland

[3] Tampere Univ Technol, Inst Mat Chem, FIN-33101 Tampere, Finland

来源：

JOURNAL OF NONLINEAR OPTICAL PHYSICS & MATERIALS | 2002年 / 11卷 / 04期

基金：

芬兰科学院;

关键词：

nonlinear optics; second-harmonic generation; metal nanoparticles; nanostructures;

D O I：

10.1142/S0218863502001103

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The optical properties of nanoscopic arrays of metal particles are dominated by plasmon resonances and electromagnetic interaction between the particles. We use electron-beam lithography to prepare arrays of noncentrosymmetric gold particles and study their linear and second-order nonlinear optical properties. By varying the orientation of the particles in a fixed lattice, we observe shifts in the polarized linear extinction spectra. The second-harmonic generation efficiencies of the two types of samples differ by up to 60%. The results show that the properties of the samples are sensitive to the smallest details of their structure.

引用

页码：421 / 432

页数：12

共 32 条

[1] THEORY OF 2ND HARMONIC-GENERATION AT A METAL-SURFACE WITH SURFACE-PLASMON EXCITATION [J].