Suppression of stimulated Brillouin scattering by two perpendicular linear polarization lasers

S. S. Ban; Q. Wang; Z. J. Liu; C. Y. Zheng; X. T. He

doi:10.1063/1.5141009

AIP Advances (Feb 2020)

Suppression of stimulated Brillouin scattering by two perpendicular linear polarization lasers

S. S. Ban,
Q. Wang,
Z. J. Liu,
C. Y. Zheng,
X. T. He

Affiliations

S. S. Ban: HEDPS, Center for Applied Physics and Technology, School of Physics, Peking University, Beijing 100871, China
Q. Wang: HEDPS, Center for Applied Physics and Technology, Peking University, Beijing 100871, China
Z. J. Liu: HEDPS, Center for Applied Physics and Technology, Peking University, Beijing 100871, China
C. Y. Zheng: HEDPS, Center for Applied Physics and Technology, Peking University, Beijing 100871, China
X. T. He: HEDPS, Center for Applied Physics and Technology, Peking University, Beijing 100871, China

DOI: https://doi.org/10.1063/1.5141009
Journal volume & issue: Vol. 10, no. 2
pp. 025123 – 025123-5

Abstract

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Stimulated Brillouin scattering (SBS) is a basic problem for laser–plasma interactions. In this work, two perpendicular linear polarization lasers with different frequencies are combined to form a new beam. The polarization of the new beam varies between linear and ellipse, while the intensity remains constant. By adopting this method, a significant suppression of SBS is predicted due to the reduction in the effective wave–wave interaction lengths. Additionally, two linearly polarized beams would be easier to use in an experiment than an alternate approach using two circularly polarized beams. The suppression of SBS is modeled with a nonlinear wave–wave coupling model, and the model is verified with 1D particle-in-cell simulations.

Published in AIP Advances

ISSN: 2158-3226 (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Science: Physics
Website: http://aipadvances.aip.org/

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