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Effects of pulse transverse profile on electron bow-wave injection of electrons in laser wakefield acceleration

Zhang Guo-Bo Ma Yan-Yun Zou De-Bin Zhuo Hong-Bin Shao Fu-Qiu Yang Xiao-Hu Ge Zhe-Yi Yu Tong-Pu Tian Cheng-Lin Ouyang Jian-Ming Zhao Na

Effects of pulse transverse profile on electron bow-wave injection of electrons in laser wakefield acceleration

Zhang Guo-Bo, Ma Yan-Yun, Zou De-Bin, Zhuo Hong-Bin, Shao Fu-Qiu, Yang Xiao-Hu, Ge Zhe-Yi, Yu Tong-Pu, Tian Cheng-Lin, Ouyang Jian-Ming, Zhao Na
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  • Received Date:  31 January 2013
  • Accepted Date:  11 March 2013
  • Published Online:  20 June 2013

Effects of pulse transverse profile on electron bow-wave injection of electrons in laser wakefield acceleration

  • 1. College of Science, National University of Defense Technology, Changsha 410073, China
Fund Project:  Project supported by the Joint Fund of the National Natural Science Foundation of China and the China Academy of Engineering Physics (Grant No. 10976031), the National Natural Science Foundation of China (Grant Nos. 11175253, 10975121, 10935002), the Young Scientists Fund of the National Natural Science Foundation of China (Grant No. 11205243), and the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20114307110020).

Abstract: In this paper we study the effects of transverse profile of incident laser on trapping of electrons in an electron bow-wave injection regime. By using the particle-in-cell code, we find that the super-gaussian profile laser pulse can drive more energetic electrons of the electron bow-wave into the bubble with higher longitudinal injection velocity. At last, the total number of trapped electrons increases almost 5 times. And the quality of electron beam is also improved obviously.

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