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Picosecond terahertz pump-probe realized from Chinese terahertz free-electron laser*

文献类型：期刊论文

作者Wang, Chao3,4; Xu, Wen3,5,6; Mei, Hong-Ying1,3; Qin, Hua7; Zhao, Xin-Nian3,4; Wen, Hua3,4; Zhang, Chao3; Ding, Lan5,6; Xu, Yong2; Li, Peng2
刊名CHINESE PHYSICS B
出版日期2020-07-01
卷号29
关键词free-electron laser ultrafast measurements picosecond phenomena
ISSN号1674-1056
DOI10.1088/1674-1056/ab961b
通讯作者Xu, Wen(wenxu_issp@aliyun.com)
英文摘要Electron energy relaxation time tau is one of the key physical parameters for electronic materials. In this study, we develop a new technique to measure tau in a semiconductor via monochrome picosecond (ps) terahertz (THz) pump and probe experiment. The special THz pulse structure of Chinese THz free-electron laser (CTFEL) is utilized to realize such a technique, which can be applied to the investigation into THz dynamics of electronic and optoelectronic materials and devices. We measure the THz dynamical electronic properties of high-mobility n-GaSb wafer at 1.2 THz, 1.6 THz, and 2.4 THz at room temperature and in free space. The obtained electron energy relaxation time for n-GaSb is in line with that measured via,e.g., four-wave mixing techniques. The major advantages of monochrome ps THz pump-probe in the study of electronic and optoelectronic materials are discussed in comparison with other ultrafast optoelectronic techniques. This work is relevant to the application of pulsed THz free-electron lasers and also to the development of advanced ultrafast measurement technique for the investigation of dynamical properties of electronic and optoelectronic materials.
WOS关键词SPECTROSCOPY
资助项目National Natural Science Foundation of China[U1930116] ; National Natural Science Foundation of China[U1832153] ; National Natural Science Foundation of China[11574319] ; Center of Science and Technology of Hefei Academy of Sciences, China[2016FXZY002]
WOS研究方向Physics
语种英语
WOS记录号WOS:000558519100001
出版者IOP PUBLISHING LTD
资助机构National Natural Science Foundation of China ; Center of Science and Technology of Hefei Academy of Sciences, China
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/70843]  
专题中国科学院合肥物质科学研究院
通讯作者Xu, Wen
作者单位1.Huanghuai Univ, Fac Informat Engn, Zhumadian 463000, Peoples R China
2.China Acad Engn Phys, Inst Appl Elect, Mianyang 621900, Sichuan, Peoples R China
3.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China
4.Univ Sci & Technol China, Hefei 230026, Peoples R China
5.Yunnan Univ, Sch Phys & Astron, Kunming 650091, Yunnan, Peoples R China
6.Yunnan Univ, Yunnan Key Lab Quantum Informat, Kunming 650091, Yunnan, Peoples R China
7.Chinese Acad Sci, Suzhou Inst Nanotech & Nanobion, Key Lab Nanodevices & Applicat, Suzhou 215123, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Chao,Xu, Wen,Mei, Hong-Ying,et al. Picosecond terahertz pump-probe realized from Chinese terahertz free-electron laser*[J]. CHINESE PHYSICS B,2020,29.
APA Wang, Chao.,Xu, Wen.,Mei, Hong-Ying.,Qin, Hua.,Zhao, Xin-Nian.,...&Li, Ming.(2020).Picosecond terahertz pump-probe realized from Chinese terahertz free-electron laser*.CHINESE PHYSICS B,29.
MLA Wang, Chao,et al."Picosecond terahertz pump-probe realized from Chinese terahertz free-electron laser*".CHINESE PHYSICS B 29(2020).

入库方式： OAI收割

来源：合肥物质科学研究院

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