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
收藏
页码：421 / 432
页数：12
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