Relativistic self-focusing and its effect on stimulated Raman and stimulated Brillouin scattering in laser plasma interaction

2001 ◽  
Vol 8 (7) ◽  
pp. 3419-3426 ◽  
Author(s):  
Saleh T. Mahmoud ◽  
R. P. Sharma
Keyword(s):  
Laser Plasma ◽  
Brillouin Scattering ◽  
Stimulated Brillouin Scattering ◽  
Plasma Interaction ◽  
Laser Plasma Interaction ◽  
Self Focusing ◽  
Stimulated Brillouin ◽  
Stimulated Raman

scholarly journals Modification of stimulated Brillouin scattering due to magnetic anisotropy in laser–plasma interaction

1998 ◽  
Vol 16 (3) ◽  
pp. 491-501 ◽  
Author(s):  
M. Khan ◽  
S. Sarkar ◽  
T. Desai ◽  
H.C. Pant
Keyword(s):  
Magnetic Anisotropy ◽  
Laser Plasma ◽  
Brillouin Scattering ◽  
Stimulated Brillouin Scattering ◽  
Wave Number ◽  
Laser Fusion ◽  
Laser Plasma Interaction ◽  
Inverse Faraday Effect ◽  
Phase Velocities ◽  
Stimulated Brillouin

Laser plasma experiments reveal rich interplay between laser plasma instabilities. The growth of stimulated Brillouin scattering (SBS) is one of the most significant constraints of laser fusion experiments. In this paper, a mechanism of stabilization of SBS process due to magnetic anisotropy has been presented. Magnetic anisotropy induced by the temporally exponentially growing nonoscillating magnetic moment from inverse Faraday effect (IFE) has been studied.It has been shown that for interaction of Nd laser (λ = 1.06 μm) on solid deuterium target the SBS growth rate (y) ∼ 3.45 ps and the phase velocities of the incident and scattered electromagnetic (EM) waves have been shown to decay exponentially (∼e∼λ1) in this SBS process resulting in wave-number mismatch.

scholarly journals Bandwidth effects on laser–plasma interaction with a ¼-μm laser

1993 ◽  
Vol 11 (1) ◽  
pp. 15-23 ◽  
Author(s):  
H. Yoneda ◽  
T. Miura ◽  
Y. Yokota ◽  
Y. Motoki ◽  
A. Sasaki ◽  
...  
Keyword(s):  
Theoretical Prediction ◽  
Laser Plasma ◽  
Brillouin Scattering ◽  
Fluid Simulation ◽  
Experimental Results ◽  
Simulation Code ◽  
Plasma Interaction ◽  
Laser Plasma Interaction ◽  
Broadband Laser ◽  
Stimulated Brillouin

Bandwidth effects on laser-plasma interaction were investigated with a ¼-μm laser. Planar targets were irradiated with a 1- to 40-cm–1 bandwidth laser at I = 1 × 1013–4 × 1015 W/cm2. Above 3 × 1013 W/cm2, stimulated Brillouin scattering (SBS) was observed with 1 cm–1 light. This process was strongly reduced with a 40-cm–1 light. Evolution of the convective SBS was studied with 1-D fluid simulation code. Bandwidth effect on the SBS growth was discussed to compare the theoretical prediction and experimental results. The scalelength dependence exists for the SBS reduction with a broadband laser.

scholarly journals Laser–plasma-interaction experiments using multikilojoule lasers

1988 ◽  
Vol 6 (2) ◽  
pp. 235-244 ◽  
Author(s):  
R. Paul Drake
Keyword(s):  
Laser Plasma ◽  
Stimulated Raman Scattering ◽  
Brillouin Scattering ◽  
High Gain ◽  
Laser Wavelength ◽  
Laser Fusion ◽  
Incident Laser ◽  
Plasma Interaction ◽  
Laser Plasma Interaction ◽  
Stimulated Brillouin

This paper summarizes the results of several laser–plasma-interaction experiments using multikilojoule lasers, and considers their implications for laser fusion. The experiments used 1·06-, 0·53-, 0·35-, and 0·26-μm light to produce relatively large, warm, planar plasmas and to study the effect of laser wavelength and density-gradient scale length on the Stimulated Raman Scattering and on the scattering of light at frequencies near the incident laser frequencey by Stimulated Brillouin Scattering or other processes. The results of these experiments suggest that some laser wavelength between 0·2 and 0·6 μm will be required for high-gain laser fusion.

Stimulated Brillouin scattering and ponderomotive self‐focusing from a single laser hot spot

1995 ◽  
Vol 2 (5) ◽  
pp. 1712-1724 ◽  
Author(s):  
V. V. Eliseev ◽  
W. Rozmus ◽  
V. T. Tikhonchuk ◽  
C. E. Capjack
Keyword(s):  
Brillouin Scattering ◽  
Hot Spot ◽  
Stimulated Brillouin Scattering ◽  
Self Focusing ◽  
Single Laser ◽  
Stimulated Brillouin

scholarly journals Stimulated Raman cascade-into-photon condensation and ultra-intense EM solitons in laser plasma interaction

2006 ◽  
Vol 55 (10) ◽  
pp. 5325
Author(s):  
Li Bai-Wen ◽  
Zheng Chun-Yang ◽  
Song Min ◽  
Liu Zhan-Jun
Keyword(s):  
Laser Plasma ◽  
Plasma Interaction ◽  
Laser Plasma Interaction ◽  
Stimulated Raman

Stimulated Brillouin scattering reduction induced by self-focusing for a single laser speckle interacting with an expanding plasma

2014 ◽  
Vol 21 (3) ◽  
pp. 032703 ◽  
Author(s):  
P. E. Masson-Laborde ◽  
S. Hüller ◽  
D. Pesme ◽  
Ch. Labaune ◽  
S. Depierreux ◽  
...  
Keyword(s):  
Brillouin Scattering ◽  
Stimulated Brillouin Scattering ◽  
Laser Speckle ◽  
Self Focusing ◽  
Single Laser ◽  
Stimulated Brillouin
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