Research progress in terahertz quantum cascade lasers  

作　　者：CAO JunCheng 

机构地区：[1]Key Laboratory of Terahertz Solid-State Technology,Shanghai Institute of Microsystem and Information Technology,Chinese Academy of Sciences,Shanghai 200050,China

出　　处：《Science China(Information Sciences)》2012年第1期16-26,共11页中国科学（信息科学）（英文版）

基　　金：supported by National High-Tech Research&Development Program of China(Grant No.2011AA-010205);National Natural Science Foundation of China(Grant Nos.61131006,60721004);Major National Development Project of Scientific Instrument and Equipment(Grant No.2011YQ150021);Important National Science and Technology Specific Projects(Grant No.2011ZX02707);major project(Grant No.YYYJ-1123);Hundred Talent Program of the Chinese Academy of Sciences;Shanghai Municipal Commission of Science and Technology(Grant No.10JC1417000)

摘　　要：The terahertz （THz） quantum cascade laser （QCL） is a coherent THz source based on intersubband transitions of unipolar carriers. As semiconductor lasers, THz QCLs are solid-state, electrically pumped, tunable, and can be easily integrated. This paper reviews the state of the art for the design, operation temperature, and output power of THz QCLs. Their applications in THz communication and imaging are also discussed.The terahertz （THz） quantum cascade laser （QCL） is a coherent THz source based on intersubband transitions of unipolar carriers. As semiconductor lasers, THz QCLs are solid-state, electrically pumped, tunable, and can be easily integrated. This paper reviews the state of the art for the design, operation temperature, and output power of THz QCLs. Their applications in THz communication and imaging are also discussed.

关 键 词：TERAHERTZ quantum cascade laser COMMUNICATION IMAGING 

分 类 号：TN248[电子电信—物理电子学] O451[理学—无线电物理]