This article is cited in 1 paper

Superstrong light fields

Laser vacuum acceleration of a relativistic electron bunch

I. V. Glazyrin^a, A. V. Karpeev^a, O. G. Kotova^a, K. S. Nazarov^a, V. Yu. Bychenkov<sup>bc

a</sup> Russian Federal Nuclear Center E. I. Zababakhin All-Russian Scientific Research Institute of Technical Physics, Snezhinsk
^b P. N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow
^c All-Russian Scientific Research Institute of Automatics, Moscow

Abstract: With regard to the problem of laser acceleration of a relativistic electron bunch we present a scheme of its vacuum acceleration directly by a relativistic intensity laser pulse. The energy of the electron bunch injected into the laser pulse leading edge increases during its coaxial movement to a thin, pulse-reflecting target. The laser-accelerated electrons continue to move free forward, passing through the target. The study of this acceleration scheme in the three-dimensional geometry is verified in a numerical simulation by the particle-in-cell method, which showed that the energy of a part of the electrons can increase significantly compared to the initial one. Restrictions are discussed, which impose limiting values of energy and total charge of accelerated electrons.

Keywords: laser pulse, electrons, vacuum acceleration, spectrum of particles, ponderomotive scattering.

PACS: 41.75.Ht, 41.75.Jv, 52.25.Dg

Received: 19.12.2014
Revised: 05.02.2015

 English version: Quantum Electronics, 2015, 45:6, 551–555

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