共 50 条
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
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
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页码:5473 / 5476
页数:4
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