Linear regime of two-plasmon decay and stimulated Raman scattering instability near the quarter-critical density in plasmas

Journal Article · Fri May 15 00:00:00 EDT 2015 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4919959· OSTI ID:22410321

Wen, H.; Yan, R.; Maximov, A. V. ^[1]; Ren, C. ^[1]

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1. Department of Mechanical Engineering and Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14627 (United States)

A model for the interaction between the laser light and the plasma waves near the quarter-critical density in plasmas has been studied. This model includes, but is not limited to, the instabilities of two-plasmon decay (TPD) and stimulated Raman scattering (SRS). The full simulation results show the instability growth in the wavevector domains corresponding to TPD and SRS, respectively, and the domain between those two. The instability growth rates and thresholds can be calculated in our model for the parameters of the inertial confinement fusion experiments without the approximations common in analytical theories.

• OSTI ID: 22410321
• Journal Information: Physics of Plasmas, Vol. 22, Issue 5; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
INERTIAL CONFINEMENT
INSTABILITY GROWTH RATES
INTERACTIONS
LASER RADIATION
PLASMA DENSITY
PLASMA WAVES
RAMAN EFFECT
SIMULATION