Terahertz coherent transition radiation based on an ultrashort electron bunching beam

doi:10.1088/1674-1056/20/7/074102

中国物理B ›› 2011, Vol. 20 ›› Issue (7): 74102-074102.doi: 10.1088/1674-1056/20/7/074102

Terahertz coherent transition radiation based on an ultrashort electron bunching beam

刘文鑫, 黄文会, 杜应超, 颜立新, 吴岱, 唐传祥

Department of Engineering Physics, Tsinghua University, Beijing 100084, China

收稿日期:2010-11-03 修回日期:2011-01-22 出版日期:2011-07-15 发布日期:2011-07-15

Terahertz coherent transition radiation based on an ultrashort electron bunching beam

Liu Wen-Xin(刘文鑫)^a)b)†, Huang Wen-Hui(黄文会)^a), Du Ying-Chao(杜应超)^a), Yan Li-Xin(颜立新)^a), Wu Dai(吴岱)^a), and Tang Chuan-Xiang(唐传祥)^a)

^aDepartment of Engineering Physics, Tsinghua University, Beijing 100084, China; ^b Key Laboratory of High Power Microwave Sources and Technologies, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China

Received:2010-11-03 Revised:2011-01-22 Online:2011-07-15 Published:2011-07-15

摘要/Abstract

摘要： The experimental result of terahertz (THz) coherent transition radiation generated from an ultrashort electron bunching beam is reported. During this experiment, the window for THz transmission from ultrahigh vacuum to free air is tested. The compact measurement system which can simultaneously test the THz wave power and frequency is built and proofed. With the help of improved Martin—Puplett interferometer and Kramers—Krong transform, the longitudinal bunch length is measured. The results show that the peak power of THz radiation wave is more than 80 kW, and its radiation frequency is from 0.1 THz to 1.5 THz.

关键词: coherent transition radiation, ultrashort electron bunching beam, Martin—Puplett interferometer, compact measurement system

Abstract: The experimental result of terahertz (THz) coherent transition radiation generated from an ultrashort electron bunching beam is reported. During this experiment, the window for THz transmission from ultrahigh vacuum to free air is tested. The compact measurement system which can simultaneously test the THz wave power and frequency is built and proofed. With the help of improved Martin—Puplett interferometer and Kramers—Krong transform, the longitudinal bunch length is measured. The results show that the peak power of THz radiation wave is more than 80 kW, and its radiation frequency is from 0.1 THz to 1.5 THz.

Key words: coherent transition radiation, ultrashort electron bunching beam, Martin—Puplett interferometer, compact measurement system

中图分类号: (Transition radiation)

41.60.Dk

29.27.Eg (Beam handling; beam transport)

刘文鑫, 黄文会, 杜应超, 颜立新, 吴岱, 唐传祥. Terahertz coherent transition radiation based on an ultrashort electron bunching beam[J]. 中国物理B, 2011, 20(7): 74102-074102.

Liu Wen-Xin(刘文鑫), Huang Wen-Hui(黄文会), Du Ying-Chao(杜应超), Yan Li-Xin(颜立新), Wu Dai(吴岱), and Tang Chuan-Xiang(唐传祥). Terahertz coherent transition radiation based on an ultrashort electron bunching beam[J]. Chin. Phys. B, 2011, 20(7): 74102-074102.

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Terahertz coherent transition radiation based on an ultrashort electron bunching beam

Terahertz coherent transition radiation based on an ultrashort electron bunching beam

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