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Two-plasmon decay instability in inhomogeneous plasmas at oblique laser incidence

Journal Article · · Physics of Plasmas
DOI:https://doi.org/10.1063/1.4963252· OSTI ID:1328778
 [1];  [2];  [2];  [2];  [3];  [2]
  1. Univ. of Rochester, Rochester, NY (United States); Laboratory for Laser Energetics, University of Rochester, Rochester, NY
  2. Univ. of Rochester, Rochester, NY (United States)
  3. Univ. of Rochester, Rochester, NY (United States); Univ. of Science and Technology of China, Anhui (People's Republic of China)
+ Show Author Affiliations
The two-plasmon decay (TPD) and stimulated Raman scattering (SRS) instabilities have been studied in the region near the quarter-critical density in the plasmas of the laser-driven inertial confinement fusion for a wide range of laser angles of incidence. The theoretical analysis of the TPD for oblique laser incidence has been carried out. The theoretical growth rates and thresholds have been compared with the results of the fluid-type simulations, and a good agreement has been found. Here, in the modeling including both TPD and SRS, the spectra of the growing perturbations have multiple peaks, and the maximum growth may be influenced by the interplay between TPD and SRS.
Research Organization:
Univ. of Rochester, Rochester, NY (United States). Lab. for Laser Energetics
Sponsoring Organization:
USDOE
Grant/Contract Number:
FC02-04ER54789; NA0001944; SC0012316
OSTI ID:
1328778
Alternate ID(s):
OSTI ID: 1328055
Journal Information:
Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 9 Vol. 23; ISSN PHPAEN; ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

References (10)

Time-resolved absorption in cryogenic and room-temperature direct-drive implosions journal May 2008
Two-plasmon-decay instability in direct-drive inertial confinement fusion experiments journal May 2009
The linear regime of the two-plasmon decay instability in inhomogeneous plasmas journal May 2010
Linear regime of two-plasmon decay and stimulated Raman scattering instability near the quarter-critical density in plasmas journal May 2015
Parametric decay of electromagnetic waves into two plasmons and its consequences journal January 1976
On the inhomogeneous two-plasmon instability journal January 1983
Diagnostic value of odd-integer half-harmonic emission from laser-produced plasmas journal January 1985
A variational approach to parametric instabilities in inhomogeneous plasmas III: Two-plasmon decay journal November 1997
Temporal Electrostatic Instabilities in Inhomogeneous Plasmas journal January 1974
Measurement of two plasmon decay instability development in k space of a laser produced plasma and its relation to 3/2-harmonic generation journal November 1993

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70 PLASMA PHYSICS AND FUSION TECHNOLOGY
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inertial confinement
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plasma waves