微纳结构调控二维过渡金属硫化物二次谐波  

Manipulation of the second harmonic generation in two-dimensional transition metal dichalcogenides via micro-nano structures

作　　者：鲍笑天 曾鑫[2] 史建伟 张文凯 刘新风 BAO XiaoTian;ZENG Xin;SHI JianWei;ZHANG WenKai;Liu XinFeng(Department of Physics and Applied Optics Beijing Area Major Laboratory,Center for Advanced Quantum Studies,Beijing Normal University,Beijing 100875,China;CAS Key Laboratory of Standardization and Measurement for Nanotechnology,National Center for Nanoscience and Technology,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]北京师范大学物理学系,应用光学北京市重点实验室,北京100875 [2]国家纳米科学中心,中国科学院纳米标准与检测重点实验室,北京100190 [3]中国科学院大学,北京100049

出　　处：《中国科学：物理学、力学、天文学》2023年第8期90-109,共20页Scientia Sinica Physica,Mechanica & Astronomica

基　　金：国家自然科学基金(编号:22073022,11874130);中国科学院战略性先导科技专项(B类)(编号:XDB36000000);中国科学院DNL合作基金(编号:DNL202016)资助项目。

摘　　要：基于二维过渡金属硫化物(Transition Metal Dichalcogenides,TMDs)的二次谐波发射体得益于高的二阶非线性极化率和原子薄的厚度,成为集成非线性光子器件领域一种理想的候选材料.但是,二维TMDs材料的二次谐波转化效率受限于其弱的光与物质相互作用强度,阻碍了其在非线性光学器件上的应用.本综述聚焦于微纳结构调控二维TMDs材料二次谐波产生的物理机制和调控手段,首先简述二次谐波非线性光学的基础理论;然后讨论二维TMDs材料二次谐波的性质;之后回顾近年来微纳结构调控二维TMDs材料二次谐波产生的研究工作,如孔洞微腔、光子超表面、等离激元谐振器以及波导等;最后进行总结并对该领域未来的发展进行展望.了解二维TMDs材料的二次谐波的性质,理解微纳结构调控二次谐波的机理,对于二维TMDs材料在片上非线性光学器件的设计和研发具有重要的意义.Two-dimensional transition metal dichalcogenides(TMDs) based second harmonic emitter is an ideal candidate for integrated nonlinear photonic devices,due to their high second-order nonlinear polarization and atom-thin thickness.However,the second harmonic conversion efficiency of two-dimensional TMDs materials is limited by the weak lightmatter interaction,which hinders its development in nonlinear optical devices.This review focuses on the mechanism of micro-nano structure manipulating second harmonic generation in two-dimensional TMDs materials.Firstly,the basic theory of nonlinear optics about second harmonics generation is briefly introduced.Secondly,the properties of the second harmonic in two-dimensional TMDs materials are discussed.Thirdly,recent studies on the second harmonic generation of two-dimensional TMDs materials manipulated by micro-nano structures are presented,such as micron cavity,photonic metasurface,plasmonic resonator and waveguide.Finally,we summarize and look forward to the possible research of this field.Understanding properties of the second harmonic in two-dimensional TMDs materials and understanding the manipulating mechanism of the second harmonic via micro-nano structure is of great significance for the design and development of two-dimensional TMDs materials in on-chip nonlinear optical devices.

关 键 词：二维过渡金属硫化物 二次谐波 微纳结构调控 非线性光学 

分 类 号：O437[机械工程—光学工程]