Nonlinear optical microscopy in two-dimensional materials

被引：0
|
作者：
Jiang T. [1 ]
Huang D. [1 ]
Song R. [1 ]
Liu A. [1 ]
Wang Z. [1 ]
Cheng X. [1 ]
机构：
[1] Institute of Precision Optical Engineering, MOE Key Laboratory of Advanced Micro-Structured Materials, Shanghai Frontiers Science Center of Digital Optics, Shanghai Professional Technical Service Platform for Full-Spectrum and High-Performance Optical Thin
来源：
Guangxue Jingmi Gongcheng/Optics and Precision Engineering | 2022年 / 30卷 / 21期
关键词：
nonlinear optics; optical microscopy; two-dimensional materials;
D O I：
10.37188/OPE.20223021.2711
中图分类号：
学科分类号：
摘要：
The reduced dimensionality of two-dimensional materials gives rise to many novel optical phe⁃ nomena. In particular，finite size effects and heterogeneities at the micro- to nano-scale significantly modi⁃ fy and even control their linear and nonlinear optical properties. Therefore，optical imaging and spectrosco⁃ py of the physical properties at their characteristic length scales are needed to understand and optimize the properties of the two-dimensional materials. In this regime，optical microscopy is one of the most widely applied and effective research techniques. In particular. nonlinear optical microscopy with a high signal-to-noise ratio and resolution under broadband response can effectively characterize the fundamental physical properties of two-dimensional materials，which plays a key role in the elementary research and applications of two-dimensional materials. In this paper，we review the progress of nonlinear optical microscopy in sen⁃ sitively resolving layer number，crystal axes，grain boundaries，stacking orders，external coupling，etc. ，in graphene，transition metal dichalcogenides，and their heterostructures. We discuss the technical chal⁃ lenges of nonlinear optical microscopy and provide a perspective on the future of the field. © 2022 Chinese Academy of Sciences. All rights reserved.
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页码：2711 / 2736
页数：25
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