A peer-reviewed journal published by K. N. Toosi University of Technology

‎Plasma density role on instability growth of transverse-longitudinal coupled electromagnetic modes in the collisional dense plasma

Document Type : Research Article

Author

Department of Physics Education‎, ‎Farhangian University‎, ‎P.O‎. ‎Box 14665-889‎, ‎Tehran‎, ‎Iran

Abstract
In this paper, the growth of transverse-longitudinal coupled electromagnetic modes in the interaction of high-intensity lasers with dense plasma is investigated. Using kinetic theory and solving the scattering relationship for the Vlasov-Maxwell system, the collision effects on the growth of the electromagnetic mode are studied. The anisotropic distribution function considers the effects of body stress due to laser ponderomotive force and plasma density gradient. The results show that a 99% reduction in frequency in the beam path in dense plasma leads to an 88\% increase in the growth rate of unstable modes. Increasing the density prevents immediate cessation and enhances the growth of unstable modes. Increasing the density gradient by 99\%, the instability rate maximum will increase by 88\%. Overall, this paper provides insights into the effects of collision and anisotropic distribution function on the growth of transverse-longitudinal coupled electromagnetic modes in dense plasma. Overall, this paper provides insights into the interplay between various phenomena such as body stress, collision, and electromagnetic modes in dense plasma.

Highlights

  •  The body stress flow can be detrimental to the growth of transverse-longitudinal coupled electromagnetic modes.
  • The collision effect on the growth of the electromagnetic mode is investigated.
  • The kinetic Vlasov-Maxwell model has been used.
  • Increasing the collision correction will lead to a reduction in the instability growth rate of the electromagnetic modes.

Keywords


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Volume 5, Issue 3
Summer 2024
Pages 41-47

  • Receive Date 03 May 2024
  • Revise Date 06 June 2024
  • Accept Date 22 July 2024