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Intersubband absorption with difference-frequency generation in GaAs asymmetric quantum wells

ISSN号：1674-1056
期刊名称：《中国物理B：英文版》
时间：0
分类：TN248.1[电子电信—物理电子学] O437[机械工程—光学工程;理学—光学;理学—物理]
作者机构：[1]with the Institute of Laser & Opto-Electronic, the College of Precision Instruments and Opto-Electronic Engineering, Tianjin University, Tianjin 300072, China., [2]with the Institute of Laser & Opto-Electronic, the College of Precision Instruments and Opto-Electronic Engineering, Tianjin University, Tianjin 300072, China
相关基金：This work was supported by the National High Technology Research and Development Program of China （863） under Grant No. 2011AA010205, National Natural Science Foundation of China under Grant No. 61172010 61101058, 61107086, and 61275120, the CAEP THz Science and Technology Foundation under Grant No. CAEPTHZ201201 and CAEPTHZ201304, the Natural Science Foundation of Tianjin under Grant No. 11JCYBJC01100 and 13ZCZDSF02300, and the Specialized Research Fund for the Doctoral Program of Higher Education under Grant No. 20120032110053.

作者：曹小龙[1,3], 李忠洋[2], 姚建铨[1,3], 王与烨[1,3], 朱能念[1,3], 钟凯[1,2], 徐德刚[1,2]

关键词：非线性光学, 太赫兹, 可调谐, 单色, GAAS晶体, 平面波导, 非线性介质, DFG, Differencenonlinear optics, parametricsource.frequency generation, oscillation, terahertz

中文摘要：

Recent progresses made by authors on monochromatic and tunable terahertz(THz)generation based on nonlinear optics are reviewed,including THz parametric oscillation(TPO)and difference frequency generation(DFG).From the technical point of view,we develop extra-and intra-cavity surface-emitted TPO,as well as DFG with QPM-GaAs crystal.From the point of view of mechanism,Cherenkov phase-matching is comprehensively investigated in both bulk crystal and planar waveguide.A novel scheme for cascading enhanced Cherenkov DFG in waveguide is proposed.From the point of view of material,organic crystal4-N,N-dimethylamino-4’-N’-methyl-stibazolium tosylate(DAST)is utilized as the nonlinear medium.

英文摘要：

Recent progresses made by authors on monochromatic and tunable terahertz （THz） generation based on nonlinear optics are reviewed, including THz parametric oscillation （TPO） and difference frequency generation （DFG）. From the technical point of view, we develop extra- and intra-cavity surface-emitted TPO, as well as DFG with QPM-GaAs crystal. From the point of view of mechanism, Cherenkov phase-matching is comprehensively investigated in both bulk crystal and planar waveguide. A novel scheme for cascading enhanced Cherenkov DFG in waveguide is proposed. From the point of view of material, organic crystal 4-N,N-dimethylamino-4＇-N＇-methyl-stibazolium tosylate （DAST） is utilized as the nonlinear medium.

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