基于二维层状材料的激光器  

Lasers Based on Two-Dimensional Layered Materials

作　　者：王琪 钟阳光 赵丽云 史建伟 张帅[2] 王公堂[1] 张青 刘新风[2,5] Wang Qi;Zhong Yangguang;Zhao Liyun;Shi Jianwei;Zhang Shuai;Wang Gongtang;Zhang Qing;Liu Xinfeng(School of Physics and Electronics,Shandong Normal University,Jinan,Shandong 250358,China;CAS Key Laboratory of Standardization and Measurement for Nanotechnology,CAS Center forExcellence in Nanoscience,National Center for Nanoscience and Technology,Beijing 100190,China;Department of Materials Science and Engineering,College of Engineering,Peking University,Beijing 100871,China;Research Center for Wide Gap Semiconductor,Peking University,Beijing 100871,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]山东师范大学物理与电子科学学院,山东济南250358 [2]国家纳米科学中心,中国科学院纳米科学卓越创新中心,中国科学院纳米标准与检测重点实验室,北京100190 [3]北京大学工学院材料科学与工程系,北京100871 [4]北京大学宽禁带半导体研究中心,北京100871 [5]中国科学院大学,北京100049

出　　处：《中国激光》2020年第7期84-97,共14页Chinese Journal of Lasers

基　　金：国家自然科学基金(21673054,11874130,51991340,51991344);山东省研究生教育质量提升计划项目(SDYY18064);国家重点研发计划(2017YFA0304600)。

摘　　要：二维过渡金属硫族化合物(TMDC)具有独特的优势,可以作为增益材料实现激光发射。TMDC材料固有的强库仑相互作用和弱的介电屏蔽效应使其具有大的激子结合能,从而有助于实现室温下稳定的激子发光,其高达6~7的折射率能够提高光约束能力,原子层表面没有悬空键,当与硅基半导体器件连接时,能够避免晶格失配。这些独特性质使其成为极具潜力的增益材料,可以与硅基微腔连接构成激光器件,原子级厚度和近红外的光谱辐射能使其与集成器件互联。本文从光学微腔的分类和激光原理,以及二维材料激光器等方面总结了近几年基于TMDC材料的激光器研究进展,并指出了当前存在的问题及展望了其发展前景。Two-dimensional transition-metal dichalcogenides(TMDC)have unique advantages and can be used as gain materials for laser emission.The strong Coulomb interaction and weak dielectric screening effect of TMDC materials induce a large exciton binding energy to achieve stable exciton emission at room temperature.Moreover,TMDC can extensively increase the capability of light confinement owing to its high refractive index of up to 6--7.The atomic layer surface of TMDC materials has no dangling bonds,so they can avoid lattice mismatch when connected with silicon-based semiconductor devices.These unique properties render TMDC as potential gain materials that can be coupled with silicon-based microcavities to form laser devices.Furthermore,their atomic thickness and near-infrared spectral radiation ensure promising interconnection with integrated devices.This study summarizes the research progress of lasers based on TMDCs in recent years with the classification of optical microcavities and laser principles.Moreover,current challenges and their future application prospects are also discussed.

关 键 词：激光器 半导体激光器 过渡金属硫族化合物(TMDC) 光学微腔 光与物质相互作用 

分 类 号：O436[机械工程—光学工程]