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  • Received: Jun. 28, 2020

    Accepted: Dec. 10, 2020

    Posted: Feb. 8, 2021

    Published Online: Feb. 8, 2021

    The Author Email: Dazhang Li (lidz@iphy.ac.cn), Liming Chen (lmchen@sjtu.edu.cn)

    DOI: 10.1017/hpl.2020.51

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    Jie Feng, Yifei Li, Jinguang Wang, Dazhang Li, Changqing Zhu, Junhao Tan, Xiaotao Geng, Feng Liu, Liming Chen. Optical control of transverse motion of ionization injected electrons in a laser plasma accelerator[J]. High Power Laser Science and Engineering, 2021, 9(1): 010000e5

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High Power Laser Science and Engineering, Vol. 9, Issue 1, 010000e5 (2021)

Optical control of transverse motion of ionization injected electrons in a laser plasma accelerator

Jie Feng1,2, Yifei Li3, Jinguang Wang3, Dazhang Li4,*, Changqing Zhu3, Junhao Tan3, Xiaotao Geng3, Feng Liu1,2, and Liming Chen1,2,*

Author Affiliations

  • 1Key Laboratory for Laser Plasmas (MoE), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai200240, China
  • 2IFSA Collaborative Innovation Center and School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai200240, China
  • 3Beijing National Research Center of Condensed Matter Physics, Institute of Physics, CAS, Beijing100190, China
  • 4Institute of High Energy Physics, CAS, Beijing100049, China

Abstract

We demonstrate an all-optical method for controlling the transverse motion of an ionization injected electron beam in a laser plasma accelerator by using the transversely asymmetrical plasma wakefield. The laser focus shape can control the distribution of a transversal wakefield. When the laser focus shape is changed from circular to slanted elliptical in the experiment, the electron beam profiles change from an ellipse to three typical shapes. The three-dimensional particle-in-cell simulation result agrees well with the experiment, and it shows that the trajectories of these accelerated electrons change from undulating to helical. Such an all-optical method could be useful for convenient control of the transverse motion of an electron beam, which results in synchrotron radiation from orbit angular momentum.

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