Second-harmonic generation in gold crescent-and comma-like nanostructures

被引：4
|
作者：
Kolmychek, I. A. [1 ]
Mamonov, E. A. [1 ]
Bochenkov, V. E. [2 ]
Murzina, T., V [1 ]
机构：
[1] Moscow MV Lomonosov State Univ, Dept Phys, Moscow 119991, Russia
[2] Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119991, Russia
来源：
OPTICS LETTERS | 2019年 / 44卷 / 22期
基金：
俄罗斯科学基金会; 俄罗斯基础研究基金会;
关键词：
SURFACE; FABRICATION;
D O I：
10.1364/OL.44.005473
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Anisotropic metal nanostructures reveal unique optical properties providing new optical effects. Here we study experimentally the nonlinear-optical response of planar arrays of gold comma-like and crescent-like nanostructures made by colloidal lithography. We show that anisotropy of the nonlinear-optical response is defined not only by the shape of the particles, but also by the relative phase of second-order susceptibility components, which are found to be spectrally sensitive. High values of circular dichroism in the second-harmonic generation response up to 70% are observed in comma-like nanostructures. (C) 2019 Optical Society of America
引用
收藏
页码：5473 / 5476
页数：4
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