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Title: Nonlinear fluid simulation study of stimulated Raman and Brillouin scatterings in shock ignition

Abstract

We developed a new nonlinear fluid laser-plasma-instability code (FLAME) using a multi-fluid plasma model combined with full electromagnetic wave equations. The completed one-dimensional version of FLAME was used to study laser-plasma instabilities in shock ignition. The simulations results showed that absolute stimulated Raman scattering (SRS) modes growing near the quarter-critical surface were saturated by Langmuir-wave Decay Instabilities (LDI) and pump depletion. The ion-acoustic waves from LDI acted as seeds of Stimulated Brillouin Scattering, which displayed a bursting pattern and caused strong pump depletion. Re-scattering of SRS at the 1/16th-critical surface was also observed in a high temperature case. These results largely agreed with the corresponding Particle-in-Cell simulations.

Authors:
 [1];  [2]; ORCiD logo [3];  [3];  [3]
+ Show Author Affiliations
  1. Univ. of Rochester, Rochester, NY (United States); Institute of Applied Physics and Computational Mathematics, Beijing (China)
  2. Univ. of Rochester, Rochester, NY (United States); Univ. of Science and Technology of China, Anhui (China)
  3. Univ. of Rochester, Rochester, NY (United States)
Publication Date:
Research Org.:
Univ. of Rochester, NY (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1474287
Alternate Identifier(s):
OSTI ID: 1497867
Grant/Contract Number:  
SC0012316; FC02-04ER54789
Resource Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 24; Journal Issue: 6; 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

Citation Formats

Hao, L., Yan, R., Li, J., Liu, W. D., and Ren, C. Nonlinear fluid simulation study of stimulated Raman and Brillouin scatterings in shock ignition. United States: N. p., 2017. Web. doi:10.1063/1.4989702.
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Hao, L., Yan, R., Li, J., Liu, W. D., & Ren, C. Nonlinear fluid simulation study of stimulated Raman and Brillouin scatterings in shock ignition. United States. https://doi.org/10.1063/1.4989702
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Hao, L., Yan, R., Li, J., Liu, W. D., and Ren, C. Thu . "Nonlinear fluid simulation study of stimulated Raman and Brillouin scatterings in shock ignition". United States. https://doi.org/10.1063/1.4989702. https://www.osti.gov/servlets/purl/1474287.
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@article{osti_1474287,
title = {Nonlinear fluid simulation study of stimulated Raman and Brillouin scatterings in shock ignition},
author = {Hao, L. and Yan, R. and Li, J. and Liu, W. D. and Ren, C.},
abstractNote = {We developed a new nonlinear fluid laser-plasma-instability code (FLAME) using a multi-fluid plasma model combined with full electromagnetic wave equations. The completed one-dimensional version of FLAME was used to study laser-plasma instabilities in shock ignition. The simulations results showed that absolute stimulated Raman scattering (SRS) modes growing near the quarter-critical surface were saturated by Langmuir-wave Decay Instabilities (LDI) and pump depletion. The ion-acoustic waves from LDI acted as seeds of Stimulated Brillouin Scattering, which displayed a bursting pattern and caused strong pump depletion. Re-scattering of SRS at the 1/16th-critical surface was also observed in a high temperature case. These results largely agreed with the corresponding Particle-in-Cell simulations.},
doi = {10.1063/1.4989702},
journal = {Physics of Plasmas},
number = 6,
volume = 24,
place = {United States},
year = {Thu Jun 22 00:00:00 EDT 2017},
month = {Thu Jun 22 00:00:00 EDT 2017}
}
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Journal Article:
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Publisher's Version of Record
https://doi.org/10.1063/1.4989702
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Cited by: 12 works
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Figures / Tables:

Figure 1 Figure 1: Effective Landau damping rates for two modes of the weekly damped ion-acoustic wave in FLAME code with (a) Te = 1.6 keV, ne= 0.2nc, and k$\lambda$D = 0.224 and (b) Te = 3.5 keV, ne = 0.2nc, and k$\lambda$D = 0.331.
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    Works referencing / citing this record:

    Investigation on laser plasma instability of the outer ring beams on SGIII laser facility
    journal, September 2019

    • Hao, Liang; Yang, Dong; Li, Xin
    • AIP Advances, Vol. 9, Issue 9
    • DOI: 10.1063/1.5087936

    Auto-resonant stimulated Brillouin backscattering in supersonic flowing plasmas by fully kinetic Vlasov simulations
    journal, June 2019

    • Wang, Q.; Zheng, C. Y.; Liu, Z. J.
    • Plasma Physics and Controlled Fusion, Vol. 61, Issue 8
    • DOI: 10.1088/1361-6587/ab2736
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      Figures / Tables found in this record:

      Figure 1 (p. 4)figure
      Figure 2 (p. 5)figure
      Figure 3 (p. 5)figure
      Figure 4 (p. 5)figure
      Figure 5 (p. 5)figure
      Figure 6 (p. 6)figure
      Table I (p. 6)table
      Figure 7 (p. 7)figure
      Figure 8 (p. 7)figure
      Figure 9 (p. 8)figure
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