Effect of pump depletion and self-focusing on stimulated Brillouin scattering process in laser-plasma interactions

S. T. Mahmoud; R. P. Sharma; A. Kumar; S. Yadav

doi:10.1063/1.873332

Effect of pump depletion and self-focusing on stimulated Brillouin scattering process in laser-plasma interactions

S. T. Mahmoud
, R. P. Sharma
, A. Kumar
, S. Yadav

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

This paper presents the study of the stimulated Brillouin scattering (SBS) process when the self-focusing effects of the pump and scattered laser beams are taken into account in three dimensions within the paraxial ray approximations. Integrated SBS reflectivity is found to exhibit a maximum value at an optimum SBS gain. The reflectivity with pump depletion is less than without pump depletion and several orders of magnitude lower than the usual three-wave interaction case. The effect of the statistical distribution of the laser beam on the SBS reflectivity has also been discussed.

Original language	English
Pages (from-to)	927-931
Number of pages	5
Journal	Physics of Plasmas
Volume	6
Issue number	2-3
DOIs	https://doi.org/10.1063/1.873332
Publication status	Published - Mar 1999
Externally published	Yes

ASJC Scopus subject areas

Condensed Matter Physics

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10.1063/1.873332

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abstract = "This paper presents the study of the stimulated Brillouin scattering (SBS) process when the self-focusing effects of the pump and scattered laser beams are taken into account in three dimensions within the paraxial ray approximations. Integrated SBS reflectivity is found to exhibit a maximum value at an optimum SBS gain. The reflectivity with pump depletion is less than without pump depletion and several orders of magnitude lower than the usual three-wave interaction case. The effect of the statistical distribution of the laser beam on the SBS reflectivity has also been discussed.",

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AU - Mahmoud, S. T.

AU - Sharma, R. P.

AU - Kumar, A.

AU - Yadav, S.

PY - 1999/3

Y1 - 1999/3

N2 - This paper presents the study of the stimulated Brillouin scattering (SBS) process when the self-focusing effects of the pump and scattered laser beams are taken into account in three dimensions within the paraxial ray approximations. Integrated SBS reflectivity is found to exhibit a maximum value at an optimum SBS gain. The reflectivity with pump depletion is less than without pump depletion and several orders of magnitude lower than the usual three-wave interaction case. The effect of the statistical distribution of the laser beam on the SBS reflectivity has also been discussed.

AB - This paper presents the study of the stimulated Brillouin scattering (SBS) process when the self-focusing effects of the pump and scattered laser beams are taken into account in three dimensions within the paraxial ray approximations. Integrated SBS reflectivity is found to exhibit a maximum value at an optimum SBS gain. The reflectivity with pump depletion is less than without pump depletion and several orders of magnitude lower than the usual three-wave interaction case. The effect of the statistical distribution of the laser beam on the SBS reflectivity has also been discussed.

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JF - Physics of Plasmas

IS - 2-3

ER -

Effect of pump depletion and self-focusing on stimulated Brillouin scattering process in laser-plasma interactions

Abstract

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