Research progress in terahertz quantum-cascade lasers and quantum-well photodetectors  

作　　者：Zhi-Yong Tan Wen-Jian Wan Jun-Cheng Cao 谭智勇;万文坚;曹俊诚(Key Laboratory of Terahertz Solid-State Technology,Shanghai Institute of Microsystem and Information Technology,Chinese Academy of Sciences,Shanghai 200050,China;Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China)

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 [2]Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Chinese Physics B》2020年第8期59-71,共13页中国物理B（英文版）

基　　金：the National Key R&D Program of China(Grant No.2017YFA0701005);the National Natural Science Foundation of China(Grant Nos.61927813,61775229,61704181,and 61991432);the Shanghai International Cooperation Project,China(Grant No.18590780100).

摘　　要：As semiconductor devices,the terahertz quantum-cascade laser is a coherent source based on intersubband transitions of unipolar carriers while the terahertz quantum-well photodetector is a kind of detector which matches the laser frequency.They are solid-state,electrically operated,and can be easily integrated with other components.This paper reviews the state of the art for the design,working performance,and future directions of the two devices.Their applications in photoelectric characterization and imaging are also discussed.

关 键 词：TERAHERTZ semiconductor device photoelectric characterization imaging system 

分 类 号：TN248[电子电信—物理电子学] TN36