2.9 THz束缚态向连续态跃迁量子级联激光器研制
Study of 2.9 THz quantum cascade laser based on bound-to-continuum transition
摘要
Abstract
The material of GaAs/AlGaAs bound-to-continuum terahertz quantum-cascade laser (THz QCL) was grown by gas source molec-ular beam epitaxy. A THz QCL device was fabricated with semi-insulating surface-plasmon waveguide. Its spectrum and light intensity-current-voltage characteristics were studied. The device emits about 2.95 THz, and yields a maximum temperature of 67 K in pulse mode. In continuous-wave mode, it displays a threshold current density of 230 A/cm2 at 9 K with maximum emitted power of 1.2 mW and lases up to 30 K.关键词
太赫兹/量子级联激光器/分子束外延/波导Key words
terahertz/quantum cascade lasers/molecular beam epitaxy/waveguide引用本文复制引用
万文坚,尹嵘,谭智勇,王丰,韩英军,曹俊诚..2.9 THz束缚态向连续态跃迁量子级联激光器研制[J].物理学报,2013,(21):96-100,5.基金项目
国家高技术研究发展计划(863计划)(批准号:2011AA010205)、国家自然科学基金(批准号:61131006,61021064)、国家重大科学仪器设备开发专项(批准号:2011YQ150021)、国家科技重大专项(批准号:2011ZX02707)、中国科学院知识创新工程重要方向性项目(批准号:YYYJ-1123-1)和上海市基础研究重点基金(批准号:10JC1417000)资助的课题.@@@@Project supported by the National High Technology Research and Development Program of China (Grant No.2011AA010205), the National Natural Science Foundation of China (Grant Nos.61131006,61021064), the Major National Development Project of Scientific Instrument and Equipment, China (Grant No.2011YQ150021), the National Science and Technology Major Project of the Ministry of Science and Technology of China (Grant No.2011ZX02707), the Main Direction Program of Knowledge Innovation of Chinese Academy of Sciences (Grant No. YYYJ-1123-1), and the Shanghai Municipal Commission of Science and Technology, China (Grant No.10JC1417000) （863计划）
