胶质量子点激光器及片上集成  

Colloidal Quantum Dot Lasers and On-Chip Integration

作　　者：刘慧 龚旗煌[1,2,3] 陈建军 Liu Hui;Gong Qihuang;Chen Jianjun(State Key Laboratory for Mesoscopic Physics,School of Physics,Peking University,Beijing 100871,China;Frontiers Science Center for Nano-Optoelectronics&Collaborative Innovation Center of Quantum Matter,Peking University,Beijing 100871,China;Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan,Shanxi 030006,China)

机构地区：[1]北京大学物理学院人工微结构和介观物理国家重点实验室,北京100871 [2]北京大学纳光电子前沿科学中心&量子物质科学协同创新中心,北京100871 [3]山西大学极端光学协同创新中心,山西太原030006

出　　处：《中国激光》2020年第7期47-54,共8页Chinese Journal of Lasers

基　　金：国家重点研发计划(2018YFA0704401,2017YFF0206103,2016YFA0203500);国家自然科学基金(61922002,91850103,11674014,61475005,11527901,11525414,91850111);北京市自然科学基金(Z180015)。

摘　　要：胶质量子点作为一种半导体纳米晶体,具有量子产率高(约为100%)、辐射波长可调、性质稳定、折射率较高、可溶液处理和制作成本低廉等优点,被广泛用作微纳激光器的增益材料。基于胶质量子点的纳米尺寸(2~20 nm)和可溶液处理的性质,胶质量子点可以通过自组装的方式密集堆积形成高折射率微纳结构。为此,从胶质量子点激光器谐振腔的制备方面,总结了三类常见的胶质量子点微纳激光器,并对各自的特点进行了详细的分析。此外,还介绍了胶质量子点激光器与波导的片上集成,并着重介绍了模板辅助填充法这一集成方法。最后对胶质量子点激光器及片上集成在集成光子回路领域的发展进行了展望。As semiconductor nanocrystals,colloidal quantum dots(CQDs)are widely used as gain materials for micro/nanoscale lasers owing to their advantages of high quantum yields(~100%),tunable emission wavelengths,excellent stability,high refractive index,solution processability,and low-cost synthesis.Based on nanoscale sizes(2--20 nm)and solution processability,CQDs can construct high refractive index micro/nanoscale structures through self-assembly methods.Here,three kinds of CQD micro/nanoscale lasers are summarized based on manufacturing methods of CQD resonators,and their characteristics are discussed in details.In addition,the on-chip integrations of CQD lasers and waveguides are also introduced.Finally,the outlook for the development of CQD lasers and its on-chip integration in photonic integrated circuits(PICs)is provided.

关 键 词：激光器 胶质量子点 谐振腔 自组装 微纳激光器 片上集成 

分 类 号：TN248[电子电信—物理电子学]