物理学报Issue(8)：1-6,6.DOI:10.7498/aps.62.084212
级联参量振荡产生太赫兹辐射的理论研究
Theoretical research on terahertz wave generation based on cascaded parametric oscillation∗
摘要
Abstract
A novel mechanism of cascaded parametric oscillation is proposed in this paper to solve the problem of low-efficiency in terahertz (THz) parametric oscillation. The cascaded parametric oscillation is theoretically analyzed based on PPLN crystal as an example. The tuning characteristics of the THz wave, which are affected by the parameters of pump wavelength, poling period of PPLN and operating temperature, are investigated. The characteristics of THz gain and absorption are deduced in the case of collinear interaction of the three mixing waves. The results indicate that the THz conversion efficiency can be greatly enhanced and the widely tunable THz wave can be realized in cascaded parametric oscillation. The experiment on cascaded parametric oscillation generating high-efficiency, wide-tuning, narrow-linewidth, continuous THz wave is designed based on the analysis above.关键词
太赫兹波/太赫兹波参量振荡/级联参量振荡Key words
terahertz wave/terahertz wave parametric oscillation/cascaded parametric oscillation引用本文复制引用
李忠洋†,邴丕彬,徐德刚,曹小龙,姚建铨..级联参量振荡产生太赫兹辐射的理论研究[J].物理学报,2013,(8):1-6,6.基金项目
国家重点基础研究发展计划(批准号:2010CB922904)、国家自然科学基金(批准号:60978002,61178010)和国家高技术研究发展计划(批准号:2011AA120102)资助的课题.*Project supported by the National Basic Research Program of China (Grant No.2010CB922904), the National Natural Science Foundation of China (Grant Nos.60978002,61178010), and the National High Technology Research and Development Program of China (Grant No.2011AA20102) （批准号:2010CB922904）
