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

页码：5473 / 5476

页数：4

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