太赫兹科学与电子信息学报Issue(1)：21-25,5.
太赫兹量子级联激光器及其光束表征技术
Terahertz Quantum-Cascade Laser and its beam pattern characterization
摘要
Abstract
The principle and recent progress of the Terahertz Quantum-Cascade Lasers(QCL) are briefly introduced. The beam quality of different THz QCLs is studied. Beam patterns of continuous wave and pulse modes emitting devices are characterized by employing thermal detector arrays and THz Quantum-Well Photodetector(THz QWP), respectively. The detecting abilities of different arrays are compared and analyzed, and the differences in THz light characterizing between the array and THz camera are also compared. According to the results of the beam improvements, some methods of beam improvement for THz light from the THz QCL are put forward. The germanium(Ge) lens, silicon hyper hemisphere(high resistance) lens and polythene lens are good tools for improving the beam quality of THz QCLs except for employing fine waveguide fabrication process.关键词
太赫兹/量子级联激光器/光束表征/量子阱探测器/热探测器阵列Key words
terahertz/Quantum-Cascade Laser(QCL)/beam pattern characterization/quantum-well photodetector/thermal detector array分类
信息技术与安全科学引用本文复制引用
谭智勇,曹俊诚..太赫兹量子级联激光器及其光束表征技术[J].太赫兹科学与电子信息学报,2013,(1):21-25,5.基金项目
科技部863主题项目(2011AA010205) （2011AA010205）
国家自然科学基金资助项目(61131006,61021064) （61131006,61021064）
国家重大科学仪器设备开发专项(2011YQ150021) （2011YQ150021）
中科院重要方向项目(YYYJ-1123-1) （YYYJ-1123-1）
上海市基础研究重点基金资助项目(10JC1417000) （10JC1417000）
上海市自然科学基金资助项目(11ZR1444200) （11ZR1444200）
