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• High Power Laser Science and Engineering
• Vol. 4, Issue 1, 010000e1 (2016)
Zhuoran Ma1、2, Zhe Wang1、2, Feichao Fu1、2, Rui Wang1、2, and Dao Xiang1、2、†
Author Affiliations
• 1Key Laboratory for Laser Plasmas (Ministry of Education), Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
• 2IFSA Collaborative Innovation Center, Shanghai Jiao Tong University, Shanghai 200240, China
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Abstract

We propose a proof-of-principle experiment to test a new scheme to produce a single-cycle radiation pulse in free-electron lasers (FELs). Here, a few ${\it\alpha}$-BBO crystals will be first used to produce an equally spaced laser pulse train. Then, the laser pulse train illuminates the cathode to produce a frequency-chirped electron bunch train in a photocathode rf gun. Finally, the frequency-chirped electron bunch train passes through a tapered undulator to produce a quasi-single-cycle THz pulse. This experiment should allow comparison and confirmation of predictive models and scaling laws, and the preliminary experimental results will also be discussed.
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Zhuoran Ma, Zhe Wang, Feichao Fu, Rui Wang, Dao Xiang. Generating quasi-single-cycle THz pulse from frequency-chirped electron bunch train and a tapered undulator[J]. High Power Laser Science and Engineering, 2016, 4(1): 010000e1