scholarly journals Demonstrating the saturation of stimulated Brillouin scattering by ion acoustic decay using fully kinetic simulations

2015 ◽  
Vol 22 (9) ◽  
pp. 092116 ◽  
Author(s):  
T. Chapman ◽  
B. J. Winjum ◽  
S. Brunner ◽  
R. L. Berger ◽  
J. W. Banks
Keyword(s):  
Brillouin Scattering ◽  
Stimulated Brillouin Scattering ◽  
Ion Acoustic ◽  
Stimulated Brillouin

Enhanced levels of stimulated Brillouin reflectivity from non-Maxwellian plasmas

2007 ◽  
Vol 73 (2) ◽  
pp. 159-166 ◽  
Author(s):  
M.S. BAWA'ANEH ◽  
T.J.M. BOYD
Keyword(s):  
Experimental Data ◽  
Acoustic Noise ◽  
Brillouin Scattering ◽  
Stimulated Brillouin Scattering ◽  
Temperature Gradients ◽  
Target Plasma ◽  
Ion Acoustic ◽  
Brillouin Gain ◽  
Stimulated Brillouin

Abstract.A model that counts for temperature gradients in the target plasma, which leads to higher ion acoustic noise and enhanced levels of stimulated Brillouin scattering (SBS) gain and SBS reflectivity, has been adopted. Enhanced Brillouin gain leading to higher SBS reflectivity levels has been computed for non-homogeneous, non-Maxwellian plasmas. SBS reflectivity levels obtained are higher than those predicted by linear convective gain theory by several orders of magnitude and coincide with the high values of experimental data known in literature, which could not be interpreted by the linear convective gain theory.

Location of Ion-Acoustic Waves from Back and Side Stimulated Brillouin Scattering

1996 ◽  
Vol 76 (20) ◽  
pp. 3727-3730 ◽  
Author(s):  
C. Labaune ◽  
H. A. Baldis ◽  
E. Schifano ◽  
B. S. Bauer ◽  
A. Michard ◽  
...  
Keyword(s):  
Acoustic Waves ◽  
Brillouin Scattering ◽  
Stimulated Brillouin Scattering ◽  
Ion Acoustic Waves ◽  
Ion Acoustic ◽  
Stimulated Brillouin

scholarly journals Excitation of nonlinear ion acoustic wave and stimulated Brillouin scattering of hollow Gaussian beam in relativistic plasma

2017 ◽  
Vol 35 (2) ◽  
pp. 226-233 ◽  
Author(s):  
P. Sharma
Keyword(s):  
Differential Equation ◽  
Acoustic Wave ◽  
Gaussian Beam ◽  
Brillouin Scattering ◽  
Collisionless Plasma ◽  
Stimulated Brillouin Scattering ◽  
Beam Width ◽  
Ion Acoustic Wave ◽  
Ion Acoustic ◽  
Stimulated Brillouin

AbstractIn the present work, excitation of nonlinear ion acoustic wave (IAW) in collisionless plasma by laser beam having null intensity at the center is examined considering relativistic nonlinearity. The differential equation for beam-width parameter is determined considering relativistic nonlinearity using the paraxial and Wentzel–Kramers–Brillouin approximations by the parabolic equation method. The propagation features of the IAW are found to be modified due to the nonlinearity present in the system. The hollow Gaussian beam (HGB) gets nonlinearly coupled with the seed IAW, results in excitation of nonlinear IAW. The interaction of nonlinear IAW with pump beam demonstrated stimulated Brillouin scattering (SBS) of HGB. It is found that the power of IAW and power of SBS is affected with the order of HGB. The power of IAW and backscattered power of SBS is determined analytically and numerically for various orders of HGB. It is found that the power of IAW and the backscattering is diminished for higher order of HGB.

Observation of ion heating by stimulated-Brillouin-scattering-driven ion-acoustic waves using Thomson scattering

2002 ◽  
Vol 9 (11) ◽  
pp. 4709-4718 ◽  
Author(s):  
D. H. Froula ◽  
L. Divol ◽  
H. A. Baldis ◽  
R. L. Berger ◽  
D. G. Braun ◽  
...  
Keyword(s):  
Acoustic Waves ◽  
Brillouin Scattering ◽  
Stimulated Brillouin Scattering ◽  
Thomson Scattering ◽  
Ion Heating ◽  
Ion Acoustic Waves ◽  
Ion Acoustic ◽  
Stimulated Brillouin
Sign in / Sign up

Export Citation Format

Share Document