Nonlinear saturation of the absolute stimulated Raman scattering instability in a finite collisional plasma

1986 ◽  
Vol 29 (6) ◽  
pp. 1959 ◽  
Author(s):  
C. J. McKinstrie ◽  
A. Simon
Keyword(s):  
Raman Scattering ◽  
Stimulated Raman Scattering ◽  
Collisional Plasma ◽  
Nonlinear Saturation ◽  
The Absolute ◽  
Stimulated Raman

scholarly journals Absolute instability modes due to rescattering of stimulated Raman scattering in a large nonuniform plasma

2019 ◽  
Vol 7 ◽  
Author(s):  
Yao Zhao ◽  
Zhengming Sheng ◽  
Suming Weng ◽  
Shengzhe Ji ◽  
Jianqiang Zhu
Keyword(s):  
Raman Scattering ◽  
Inertial Confinement Fusion ◽  
Stimulated Raman Scattering ◽  
Langmuir Wave ◽  
Pump Light ◽  
Absolute Instability ◽  
Nonuniform Plasma ◽  
Instability Modes ◽  
The Absolute ◽  
Stimulated Raman

Absolute instability modes due to secondary scattering of stimulated Raman scattering (SRS) in a large nonuniform plasma are studied theoretically and numerically. The backscattered light of convective SRS can be considered as a pump light with a finite bandwidth. The different frequency components of the backscattered light can be coupled to develop absolute SRS instability near their quarter-critical densities via rescattering process. The absolute SRS mode develops a Langmuir wave with a high phase velocity of about $c/\sqrt{3}$ with $c$ the light speed in vacuum. Given that most electrons are at low velocities in the linear stage, the absolute SRS mode grows with very weak Landau damping. When the interaction evolves into the nonlinear regime, the Langmuir wave can heat abundant electrons up to a few hundred keV via the SRS rescattering. Our theoretical model is validated by particle-in-cell simulations. The absolute instabilities may play a considerable role in the experiments of inertial confinement fusion.

Nonlinear saturation of stimulated Raman scattering in laser hot spots

1999 ◽  
Vol 6 (4) ◽  
pp. 1294-1317 ◽  
Author(s):  
David A. Russell ◽  
D. F. DuBois ◽  
Harvey A. Rose
Keyword(s):  
Raman Scattering ◽  
Hot Spots ◽  
Stimulated Raman Scattering ◽  
Nonlinear Saturation ◽  
Stimulated Raman

Exploring the Saturation Levels of Stimulated Raman Scattering in the Absolute Regime

2010 ◽  
Vol 104 (25) ◽  
Author(s):  
D. T. Michel ◽  
S. Depierreux ◽  
C. Stenz ◽  
V. Tassin ◽  
C. Labaune
Keyword(s):  
Raman Scattering ◽  
Stimulated Raman Scattering ◽  
The Absolute ◽  
Stimulated Raman

Ultra-violet Stimulated Raman Scattering of SrWO4 Crystal

2009 ◽  
Vol 24 (3) ◽  
pp. 563-566 ◽  
Author(s):  
Zheng-Ping WANG ◽  
Da-Wei HU ◽  
Huai-Jin ZHANG ◽  
Xin-Guang XU ◽  
Ji-Yang WANG ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Stimulated Raman Scattering ◽  
Ultra Violet ◽  
Stimulated Raman
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