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Direct acceleration of electrons by a Laguerre-Gaussian laser beam in vacuum

Zhao Zhi-Guo Lü Bai-Da

Direct acceleration of electrons by a Laguerre-Gaussian laser beam in vacuum

Zhao Zhi-Guo, Lü Bai-Da
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  • Abstract views:  4061
  • PDF Downloads:  1499
  • Cited By: 0
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  • Received Date:  03 July 2005
  • Accepted Date:  05 December 2005
  • Published Online:  20 April 2006

Direct acceleration of electrons by a Laguerre-Gaussian laser beam in vacuum

  • 1. (1)洛阳师范学院物理系,洛阳 471022;四川大学激光物理与化学研究所,成都 610064; (2)四川大学激光物理与化学研究所,成都 610064

Abstract: The acceleration of electrons by a Laguerre-Gaussian(LG) beam in vacuum is studied. It is shown that only the longitudinal electric field of the LG beam with mode indices p and l=1 can be used to accelerate electrons. The linearly- and circularly-polarized LG beams with mode indices p and l=1 effectively play the role in laser electron acceleration. Some physical characteristics, such as phase and group velocities of the axial optical field, and energy gain of electrons etc., are discussed. The analytical expressions for the phase and group velocities of the axial optical field, accelerating potential and energy gain etc. are derived and are used to make numerical analysis.

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