Plasma waves in laser fusion plasmas

1986 ◽  
Vol 64 (8) ◽  
pp. 961-968 ◽  
Author(s):  
H. A. Baldis ◽  
D. M. Villeneuve ◽  
C. J. Walsh
Keyword(s):  
Raman Scattering ◽  
Simultaneous Measurement ◽  
Stimulated Raman Scattering ◽  
Plasma Waves ◽  
Thomson Scattering ◽  
The Other ◽  
Laser Fusion ◽  
Fusion Plasmas ◽  
Stimulated Scattering ◽  
Ion Waves

This paper presents a review of plasma wave generation in laser-produced plasmas. A general review is given of stimulated scattering phenomena and the use of Thomson scattering techniques to diagnose waves in plasma. Two examples of the application of such methods are given: one is the simultaneous measurement of plasma and ion waves produced by the two-plasmon decay instability, the other the observation of plasma waves generated by stimulated Raman scattering.

Observation of plasma waves by Thomson scattering: Saturation of stimulated Raman scattering

1993 ◽  
Vol 71 (3) ◽  
pp. 368-371 ◽  
Author(s):  
D. M. Villeneuve ◽  
K. Baker ◽  
R. P. Drake ◽  
B. Sleaford ◽  
B. La Fontaine ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Stimulated Raman Scattering ◽  
Plasma Waves ◽  
Thomson Scattering ◽  
Stimulated Raman

Thomson Scattering Measurements of Saturated Ion Waves in Laser Fusion Plasmas

2001 ◽  
Vol 86 (12) ◽  
pp. 2565-2568 ◽  
Author(s):  
S. H. Glenzer ◽  
L. M. Divol ◽  
R. L. Berger ◽  
C. Geddes ◽  
R. K. Kirkwood ◽  
...  
Keyword(s):  
Thomson Scattering ◽  
Laser Fusion ◽  
Fusion Plasmas ◽  
Scattering Measurements ◽  
Ion Waves

Observation of plasma waves from absolute stimulated Raman scattering

1985 ◽  
Vol 28 (6) ◽  
pp. 1591 ◽  
Author(s):  
D. M. Villeneuve ◽  
C. J. Walsh ◽  
H. A. Baldis
Keyword(s):  
Raman Scattering ◽  
Stimulated Raman Scattering ◽  
Plasma Waves ◽  
Stimulated Raman

scholarly journals Investigation of stimulated Raman scattering using a short-pulse diffraction limited laser beam near the instability threshold

2009 ◽  
Vol 27 (1) ◽  
pp. 185-190 ◽  
Author(s):  
J.L. Kline ◽  
D.S. Montgomery ◽  
C. Rousseaux ◽  
S.D. Baton ◽  
V. Tassin ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Laser Plasma ◽  
Stimulated Raman Scattering ◽  
Short Pulse ◽  
Electron Plasma ◽  
Thomson Scattering ◽  
Wave Number ◽  
Particle In Cell ◽  
Laser Facility ◽  
Stimulated Raman

AbstractShort pulse laser plasma interaction experiments using diffraction limited beams provide an excellent platform to investigate the fundamental physics of stimulated Raman scattering. Detailed understanding of these laser plasma instabilities impacts the current inertial confinement fusion ignition designs and could potentially impact fast ignition when higher energy lasers are used with longer pulse durations (>1 kJ and >1 ps). Using short laser pulses, experiments can be modeled over the entire interaction time of the laser using particle-in-cell codes to validate our understanding quantitatively. Experiments have been conducted at the Trident laser facility and the Laboratoire pour l'Utilisation des Lasers Intenses (LULI) to investigate stimulated Raman scattering near the threshold of the instability using 527 nm and 1059 nm laser light, respectively, with 1.5–3.0 ps pulses. In both experiments, the interaction beam was focused into pre-ionized helium gas-jet plasma. Measurements of the reflectivity as a function of intensity and kλD were completed at the Trident laser facility, where k is the electron plasma wave number and λD is the plasma Debye length. At LULI, a 300 fs Thomson scattering probe is used to directly measure the density fluctuations of the driven electron plasma and ion acoustic waves. Work is currently underway comparing the results of the experiments with simulations using the VPIC particle-in-cell code. Details of the experimental results are presented in this manuscript.

Reducing reflectivity of stimulated Raman scattering by discretely changing phase of incident light in inertial fusion plasmas

2021 ◽  
Author(s):  
Tian Yang ◽  
Shutong Zhang ◽  
yuanzhi Zhou ◽  
Deji Liu ◽  
Xueming Li ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Inertial Confinement Fusion ◽  
Stimulated Raman Scattering ◽  
Brillouin Scattering ◽  
Incident Light ◽  
Inertial Confinement ◽  
Fusion Plasmas ◽  
Confinement Fusion ◽  
Coupling Equations ◽  
Stimulated Raman

Abstract A new method to reduce the stimulated Raman scattering (SRS) in inertial confinement fusion conditions is proposed by changing the incident light phase discretely. The proposal is first examined by three-wave coupling equations and then verified by Vlasov simulations. A remarkable decreasing in SRS reflectivity is observed when the period of phase changing is less than 2π/γ, where γ is the growth rate of SRS. By contrast, some simulations with continuously changing phase of incident light are carried out to compare their influence on SRS. In addition, the proposal may suppress the stimulated Brillouin scattering.

Detailed Characterization of Electron Plasma Waves Produced by Stimulated Raman Scattering

1996 ◽  
Vol 77 (18) ◽  
pp. 3807-3810 ◽  
Author(s):  
N. Renard ◽  
C. Labaune ◽  
H. A. Baldis ◽  
B. S. Bauer ◽  
B. Quesnel ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Stimulated Raman Scattering ◽  
Plasma Waves ◽  
Electron Plasma ◽  
Detailed Characterization ◽  
Stimulated Raman
Sign in / Sign up

Export Citation Format

Share Document