中国物理B ›› 2006, Vol. 15 ›› Issue (10): 2332-2337.doi: 10.1088/1009-1963/15/10/023

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Electron acceleration by two crossed Bessel--Gaussian beams in vacuum

吕百达1, 赵志国2   

  1. (1)Institute of Laser Physics and Chemistry, Sichuan University,Chengdu 610064, China; (2)Institute of Laser Physics and Chemistry, Sichuan University,Chengdu 610064, China;Department of Physics, Luoyang Normal College, Luoyang 471022, China
  • 收稿日期:2005-12-19 修回日期:2006-01-16 出版日期:2006-10-20 发布日期:2006-10-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10574097).

Electron acceleration by two crossed Bessel--Gaussian beams in vacuum

Zhao Zhi-Guo(赵志国)a)b)† and Lü Bai-Da(吕百达)a)   

  1. a Institute of Laser Physics and Chemistry, Sichuan University, Chengdu 610064, China; b Department of Physics, Luoyang Normal College, Luoyang 471022, China
  • Received:2005-12-19 Revised:2006-01-16 Online:2006-10-20 Published:2006-10-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10574097).

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摘要： The direct acceleration of electrons by using two linearly polarized crossed Bessel--Gaussian (BG) beams with equal frequency and amplitude in vacuum is proposed and studied. It is shown that two linearly polarized BG beams of the same order (0 or 1) with a \textit{\pi }-rad phase difference have a resultant non-zero longitudinal electric field on the z-axis and can be used, in principle, to accelerate electrons.

关键词: laser electron acceleration, crossed Bessel--Gaussian (BG) beams, phase difference

Abstract: The direct acceleration of electrons by using two linearly polarized crossed Bessel--Gaussian (BG) beams with equal frequency and amplitude in vacuum is proposed and studied. It is shown that two linearly polarized BG beams of the same order (0 or 1) with a $\pi$-rad phase difference have a resultant non-zero longitudinal electric field on the z-axis and can be used, in principle, to accelerate electrons.

Key words: laser electron acceleration, crossed Bessel--Gaussian (BG) beams, phase difference

中图分类号:  (Laser-driven acceleration?)

  • 41.75.Jv
42.60.Jf (Beam characteristics: profile, intensity, and power; spatial pattern formation) 42.60.Lh (Efficiency, stability, gain, and other operational parameters)