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)
a Institute of Laser Physics and Chemistry, Sichuan University, Chengdu 610064, China; b Department of Physics, Luoyang Normal College, Luoyang 471022, China
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.
Received: 19 December 2005
Revised: 16 January 2006
Accepted manuscript online:
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