https://doi.org/10.1140/epjp/s13360-024-05095-1
Regular Article
Dynamics of vortex beams on stimulated Raman scattering in plasma
1
Department of Physics, Lovely Professional University, 144411, Phagwara, Punjab, India
2
Photonics and Quantum Technologies Research School, Nuclear Science and Technology Research Institute, 14395-836, Tehran, Iran
3
Department of Physics, University of Allahabad, 211002, Prayagraj, Uttar Pradesh, India
Received:
18
November
2023
Accepted:
14
March
2024
Published online:
30
March
2024
This study explores vortex beam dynamics in the context of stimulated Raman scattering (SRS) in plasma. A thorough analysis is conducted to investigate the influence of vortex beams on plasma electron oscillations and wave generation, including a detailed examination of the relevant equations. Dispersion relations and growth rates, especially in relation to different azimuthal eigenmodes, are discussed. These discoveries contribute to more profound understanding of the dynamics of vortex beams within plasma during SRS, providing valuable insights that can be applied across diverse scientific fields. The results show that with the increase of the azimuthal value, significant trends emerge in the normalized frequency. Furthermore, the growth rate of SRS demonstrates an initial ascent followed by a subsequent reduction with varying azimuthal eigenmode numbers. In this paper, the behaviour of intensity profile in vortex cosine-hyperbolic Gaussian laser beam is studied when it travels in a plasma medium. The study shows that the intensity is minimized as the centre of this ring-shaped intensity profile.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
