2维材料中极化激元激光的研究进展  

Research progress on polariton lasing in 2-D materials

作　　者：张睿洋 保文睿 杜静 王卫[1] ZHANG Ruiyang;BAO Wenrui;DU Jing;WANG Wei(College of Physics,Sichuan University,Chengdu 610065,China;Institute of Atomic and Molecular Physics,Sichuan University,Chengdu 610065 China)

机构地区：[1]四川大学物理学院,成都610065 [2]四川大学原子与分子物理研究所,成都610065

出　　处：《激光技术》2024年第6期876-883,共8页Laser Technology

基　　金：国家自然科学基金资助项目(11974254)。

摘　　要：极化激元激光是一种新型激光,以半导体中激子-极化激元的玻色-爱因斯坦凝聚(BEC)的相干性实现超低阈值激光。不同于传统3维有机无机材料,2维过渡金属硫族化合物与2维钙钛矿以其高激子结合能、高振子强度、直接带隙、范德华特性、谷极化特性,有利于实现激子与腔模式的强耦合以及激子-极化激元的BEC,在极化激元激光的进一步发展中表现出巨大的潜力。介绍了2维材料中的极化激元激光的原理和进展,分别从2维过渡金属硫族化合物和2维钙钛矿的特性出发,重点综述了其中激子与腔模式的强耦合,极化激元的相干性的调控以及BEC的实现,并对2维材料中的极化激元激光的未来发展进行了展望。Polariton lasing is a new type of lasing that realizes ultra-low threshold lasing with the coherence of Bose-Einstein condensation(BEC)of exciton-polariton in semiconductors.Unlike conventional 3-D organic and inorganic materials,2-D transition metal dichalcogenides and 2-D perovskite show great potential in the further development of polariton lasing due to their high exciton binding energies,high oscillator strengths,direct band gaps,van der Waals properties,and valley polarization properties,which are conducive to the realization of strong coupling of exciton and cavity modes and BEC of exciton-polariton.In this review,the principle and progress of polariton lasing in 2-D transition metal chalcogenides and perovskite were mainly focused on,starting with development of strong coupling between exciton and cavity modes.Then,the modulation of the coherence of polariton,the realization of the BEC and polariton lasing was introduced.Finally,an outlook will be given on the future development of polariton lasing in 2-D materials.

关 键 词：激光技术 极化激元激光 强耦合 2维过渡金属硫族化合物 2维钙钛矿 玻色-爱因斯坦凝聚 

分 类 号：O43[机械工程—光学工程]