Acceleration and evolution of a hollow electron beam in wakefields driven by a Laguerre-Gaussian laser pulse

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Zhang, Guo Bo and Chen, Min and Schroeder, C. B. and Luo, Ji and Zeng, Ming and Li, Fei Yu and Yu, Lu-Le and Weng, Su Ming and Ma, Yan-Yun and Yu, Tong-Pu and Sheng, Zheng-Ming and Esarey, E. (2016) Acceleration and evolution of a hollow electron beam in wakefields driven by a Laguerre-Gaussian laser pulse. Physics of Plasmas, 23 (3). 033114. ISSN 1070-664X (https://doi.org/10.1063/1.4943892)

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Abstract

We show that a ring-shaped hollow electron beam can be injected and accelerated by using a Laguerre-Gaussian laser pulse and ionization-induced injection in a laser wakefield accelerator. The acceleration and evolution of such a hollow, relativistic electron beam are investigated through three-dimensional particle-in-cell simulations. We find that both the ring size and the beam thickness oscillate during the acceleration. The beam azimuthal shape is angularly dependent and evolves during the acceleration. The beam ellipticity changes resulting from the electron angular momenta obtained from the drive laser pulse and the focusing forces from the wakefield. The dependence of beam ring radius on the laser-plasma parameters (e.g., laser intensity, focal size, and plasma density) is studied. Such a hollow electron beam may have potential applications for accelerating and collimating positively charged particles.

ORCID iDs

Zhang, Guo Bo, Chen, Min, Schroeder, C. B., Luo, Ji, Zeng, Ming, Li, Fei Yu, Yu, Lu-Le, Weng, Su Ming, Ma, Yan-Yun, Yu, Tong-Pu, Sheng, Zheng-Ming ORCID logoORCID: https://orcid.org/0000-0002-8823-9993 and Esarey, E.;
  • Item type:Article
    ID code:56210
    Dates:
    Date
    Event
    15 March 2016
    Published
    12 February 2016
    Accepted
    Notes:This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. The following article appeared in Zhang, G. B., Chen, M., Schroeder, C. B., Luo, J., Zeng, M., Li, F. Y., ... Esarey, E. (2016). Acceleration and evolution of a hollow electron beam in wakefields driven by a Laguerre-Gaussian laser pulse. Physics of Plasmas, 23(3), [033114]. and may be found at (http://dx.doi.org/10.1063/1.4943892).
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:21 Apr 2016 14:16
    Last modified:11 Nov 2024 11:24
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/56210
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