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  • Letter

Independent-hot-spot approach to multibeam laser-plasma instabilities

R. K. Follett, H. Wen, D. H. Froula, D. Turnbull, and J. P. Palastro

  • Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623, USA

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Phys. Rev. E 105, L063201 – Published 10 June, 2022

DOI: https://doi.org/10.1103/PhysRevE.105.L063201

Abstract

The independent-hot-spot model is used to develop an analytic formulation for multibeam laser-plasma instabilities in inhomogeneous plasmas. The model is applied to the absolute two-plasmon-decay instability and shows good agreement with simulations and experiments. The success of the model indicates the emergence of single-speckle behavior for sufficiently large speckles sizes.

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Phys. Rev. E 105, L063201– Published 10 June, 2022
  • Received 15 January 2022
  • Revised 4 April 2022
  • Accepted 23 May 2022
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