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Title: Inhibition of stimulated Raman scattering due to the excitation of stimulated Brillouin scattering

Abstract

The nonlinear coupling between stimulated Raman scattering (SRS) and stimulated Brillouin scattering (SBS) of intense laser in underdense plasma is studied theoretically and numerically. Based upon the fluid model, their coupling equations are derived, and a threshold condition of plasma density perturbations due to SBS for the inhibition of SRS is given. Particle-in-cell simulations show that this condition can be achieved easily by SBS in the so-called fluid regime with kLλD<0.15, where kL is the Langmuir wave number and λD is the Debye length [Kline et al., Phys. Plasmas 13, 055906 (2006)]. SBS can reduce the saturation level of SRS and the temperature of electrons in both homogeneous and inhomogeneous plasma. Numerical simulations also show that this reduced SRS saturation is retained even if the fluid regime condition mentioned above is violated at a later time due to plasma heating.

Authors:
 [1];  [1];  [1];  [2];  [3];  [4]
  1. Shanghai Jiao Tong Univ. (China)
  2. Univ. of Rochester, NY (United States)
  3. Univ. of Maryland, College Park, MD (United States); Univ. of Macau (China)
  4. Shanghai Jiao Tong Univ. (China); Univ. of Strathclyde, Glasgow (United Kingdom)
Publication Date:
Research Org.:
Univ. of Rochester, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1535348
Alternate Identifier(s):
OSTI ID: 1395384
Grant/Contract Number:  
FC02-04ER54789; SC0012316
Resource Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 24; Journal Issue: 9; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; Physics

Citation Formats

Zhao, Yao, Yu, Lu-Le, Weng, Su-Ming, Ren, Chuang, Liu, Chuan-Sheng, and Sheng, Zheng-Ming. Inhibition of stimulated Raman scattering due to the excitation of stimulated Brillouin scattering. United States: N. p., 2017. Web. doi:10.1063/1.5004689.
Zhao, Yao, Yu, Lu-Le, Weng, Su-Ming, Ren, Chuang, Liu, Chuan-Sheng, & Sheng, Zheng-Ming. Inhibition of stimulated Raman scattering due to the excitation of stimulated Brillouin scattering. United States. https://doi.org/10.1063/1.5004689
Zhao, Yao, Yu, Lu-Le, Weng, Su-Ming, Ren, Chuang, Liu, Chuan-Sheng, and Sheng, Zheng-Ming. Thu . "Inhibition of stimulated Raman scattering due to the excitation of stimulated Brillouin scattering". United States. https://doi.org/10.1063/1.5004689. https://www.osti.gov/servlets/purl/1535348.
@article{osti_1535348,
title = {Inhibition of stimulated Raman scattering due to the excitation of stimulated Brillouin scattering},
author = {Zhao, Yao and Yu, Lu-Le and Weng, Su-Ming and Ren, Chuang and Liu, Chuan-Sheng and Sheng, Zheng-Ming},
abstractNote = {The nonlinear coupling between stimulated Raman scattering (SRS) and stimulated Brillouin scattering (SBS) of intense laser in underdense plasma is studied theoretically and numerically. Based upon the fluid model, their coupling equations are derived, and a threshold condition of plasma density perturbations due to SBS for the inhibition of SRS is given. Particle-in-cell simulations show that this condition can be achieved easily by SBS in the so-called fluid regime with kLλD<0.15, where kL is the Langmuir wave number and λD is the Debye length [Kline et al., Phys. Plasmas 13, 055906 (2006)]. SBS can reduce the saturation level of SRS and the temperature of electrons in both homogeneous and inhomogeneous plasma. Numerical simulations also show that this reduced SRS saturation is retained even if the fluid regime condition mentioned above is violated at a later time due to plasma heating.},
doi = {10.1063/1.5004689},
journal = {Physics of Plasmas},
number = 9,
volume = 24,
place = {United States},
year = {2017},
month = {9}
}

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Works referencing / citing this record:

Suppression of parametric instabilities in inhomogeneous plasma with multi-frequency light
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