Transverse beam envelope structures in strongly coupled stimulated Brillouin scattering

Schmitz, H. and Trines, R. and Bingham, R. (2020) Transverse beam envelope structures in strongly coupled stimulated Brillouin scattering. Physics of Plasmas, 27 (10). 102707. ISSN 1070-664X (https://doi.org/10.1063/5.0010872)

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Abstract

We use a newly developed code to investigate cross beam energy transfer via Brillouin scattering in the strong coupling limit. The code couples a single fluid model of the plasma to the complete set of Maxwell's equations. The code can describe beam interaction at arbitrary angles. We observe that the formation of a transverse structure on both beams is caused when the pump beam is fully depleted within the width of the beam. We present a simplified envelope model that confirms the results of the simulation. This transverse beam structure formation has implications for short pulse amplification. The results may also be relevant for fast ignition schemes for inertial confinement fusion.

  • Item type:Article
    ID code:74514
    Dates:
    Date
    Event
    14 October 2020
    Published
    20 September 2020
    Accepted
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:05 Nov 2020 12:00
    Last modified:09 Apr 2024 01:57
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/74514
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