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Vacuum electron acceleration by an intense laser

By P.X. Wang, Y.K. Ho, X.Q. Yuan, Q. Kong, A.M. Sessler, E. Esarey and Y. Nishida

Abstract

Using 3D test particle simulations, the characteristics and essential conditions under which an electron, in a vacuum laser beam, can undergo a capture and acceleration scenario (CAS). When a{sub 0} {approx}> 100 the electron can be captured and violently accelerated to energies {approx}> 1 GeV, with an acceleration gradient {approx}> 10 GeV/cm, where a{sub 0} = eE{sub 0}/m{sub e}{omega}c is the normalized laser field amplitude. The physical mechanism behind the CAS is that diffraction of the focused laser beam leads to a slowing down of the effective wave phase velocity along the captured electron trajectory, such that the electron can be trapped in the acceleration phase of the wave for a longer time and thus gain significant energy from the field

Topics: Acceleration, Slowing-Down, 43 Particle Accelerators, Lasers, Laser Radiation, Capture, Electron Beams, Phase Velocity, Intense Laser Electron Acceleration, Simulation Intense Laser Electron Acceleration
Publisher: Lawrence Berkeley National Laboratory
Year: 2001
DOI identifier: 10.1063/1.1359486
OAI identifier:
Provided by: UNT Digital Library
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