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Direct electron acceleration with a linearly polarized laser beam in a two-dimensional magnetized plasma channel

Published online by Cambridge University Press:  18 October 2019

Mohammad Ghorbanalilu Open the ORCID record for Mohammad Ghorbanalilu [Opens in a new window]  and
Nasim Nozarnejad
Mohammad Ghorbanalilu*
Affiliation:
Department of Physics, Shahid Beheshti University, G. C., Tehran, Iran
Nasim Nozarnejad
Affiliation:
Department of Physics, Shahid Beheshti University, G. C., Tehran, Iran
*
Author for correspondence: M. Ghorbanalilu, Department of Physics, Shahid Beheshti University, G. C., Evin, Tehran, Iran. E-mail: m_alilu@sbu.ac.ir
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Abstract

We examine the electron acceleration induced by an ultra-relativistic intensity laser–plasma interaction in a two-dimensional plasma channel in the presence of a self-generated transverse magnetic field. We find that the electron dynamics is strongly affected by the laser pulse polarization angle, plasma density, and magnetic field strength. We investigate in detail, the dependencies of the electron acceleration in terms of different parameters and find excellent agreement with non-magnetized plasma in the absence of the magnetic field. The numerical results show that the self-generated magnetic field plays a constructive role in the electron acceleration process. It is shown that electron acceleration is more affected by self-generated magnetic field for the laser radiations with large polarization angles. The numerical results show the maximum enhancement for electron acceleration for a laser radiation with polarization angle θ = π/2.

Keywords

Electron beamsfilamentation instabilitymagnetized plasmatwo-fluid model
Type
Research Article
Information
Laser and Particle Beams , Volume 37 , Issue 4 , December 2019 , pp. 428 - 434
Copyright
Copyright © Cambridge University Press 2019

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