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Title: Spatiotemporal evolution of high power laser pulses in relativistic magnetized inhomogeneous plasmas

Abstract

In this work, the spatiotemporal evolution of Gaussian laser pulse propagated through a plasma is investigated in the presence of an external axial magnetic field. The coupled equations of self-focusing and self-compression are obtained via paraxial approximation by taking into account the relativistic nonlinearity. The effect of axial magnetic field on simultaneously relativistic self-focusing and self-compression of the laser pulse is studied for homogeneous and inhomogeneous plasmas. The results show that the simultaneous use of both axial magnetic field and density ramp-up leads to generate pulses with the smallest spot size and shortest compression length.

Authors:
; ;  [1]
  1. Laser and Plasma Research Institute, Shahid Beheshti University, G.C., Tehran (Iran, Islamic Republic of)
Publication Date:
OSTI Identifier:
22490157
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 9; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; COMPRESSION; DENSITY; EQUATIONS; FOCUSING; INHOMOGENEOUS PLASMA; LASER RADIATION; MAGNETIC FIELDS; NONLINEAR PROBLEMS; PULSES; RELATIVISTIC RANGE

Citation Formats

Bokaei, B., Niknam, A. R., E-mail: a-niknam@sbu.ac.ir, and Imani, E. Spatiotemporal evolution of high power laser pulses in relativistic magnetized inhomogeneous plasmas. United States: N. p., 2015. Web. doi:10.1063/1.4930272.
Bokaei, B., Niknam, A. R., E-mail: a-niknam@sbu.ac.ir, & Imani, E. Spatiotemporal evolution of high power laser pulses in relativistic magnetized inhomogeneous plasmas. United States. doi:10.1063/1.4930272.
Bokaei, B., Niknam, A. R., E-mail: a-niknam@sbu.ac.ir, and Imani, E. Tue . "Spatiotemporal evolution of high power laser pulses in relativistic magnetized inhomogeneous plasmas". United States. doi:10.1063/1.4930272.
@article{osti_22490157,
title = {Spatiotemporal evolution of high power laser pulses in relativistic magnetized inhomogeneous plasmas},
author = {Bokaei, B. and Niknam, A. R., E-mail: a-niknam@sbu.ac.ir and Imani, E.},
abstractNote = {In this work, the spatiotemporal evolution of Gaussian laser pulse propagated through a plasma is investigated in the presence of an external axial magnetic field. The coupled equations of self-focusing and self-compression are obtained via paraxial approximation by taking into account the relativistic nonlinearity. The effect of axial magnetic field on simultaneously relativistic self-focusing and self-compression of the laser pulse is studied for homogeneous and inhomogeneous plasmas. The results show that the simultaneous use of both axial magnetic field and density ramp-up leads to generate pulses with the smallest spot size and shortest compression length.},
doi = {10.1063/1.4930272},
journal = {Physics of Plasmas},
number = 9,
volume = 22,
place = {United States},
year = {Tue Sep 15 00:00:00 EDT 2015},
month = {Tue Sep 15 00:00:00 EDT 2015}
}
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