Stimulated Raman scattering in the presence of suprathermal ion acoustic fluctuations in inhomogeneous plasma

2000 ◽  
Vol 50 (S3) ◽  
pp. 136-144
Author(s):  
H. C. Barr ◽  
T. J. M. Boyd ◽  
A. V. Lukyanov
Keyword(s):  
Raman Scattering ◽  
Stimulated Raman Scattering ◽  
Inhomogeneous Plasma ◽  
Acoustic Fluctuations ◽  
Ion Acoustic ◽  
Stimulated Raman

Observed Dependence of Stimulated Raman Scattering on Ion-Acoustic Damping in Hohlraum Plasmas

1996 ◽  
Vol 77 (13) ◽  
pp. 2702-2705 ◽  
Author(s):  
Juan C. Fernández ◽  
J. A. Cobble ◽  
Bruce H. Failor ◽  
Donald F. DuBois ◽  
David S. Montgomery ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Stimulated Raman Scattering ◽  
Acoustic Damping ◽  
Ion Acoustic ◽  
Stimulated Raman

Compression of ultraintense laser pulses in inhomogeneous plasma upon backward stimulated raman scattering

2007 ◽  
Vol 102 (1) ◽  
pp. 98-105 ◽  
Author(s):  
A. A. Andreev ◽  
V. G. Bespalov ◽  
E. V. Ermolaeva ◽  
R. R. E. Salomaa
Keyword(s):  
Raman Scattering ◽  
Stimulated Raman Scattering ◽  
Inhomogeneous Plasma ◽  
Laser Pulses ◽  
Stimulated Raman

An absolute Raman instability in an inhomogeneous plasma

1975 ◽  
Vol 14 (2) ◽  
pp. 327-331 ◽  
Author(s):  
R. A. Cairns
Keyword(s):  
Raman Scattering ◽  
Stimulated Raman Scattering ◽  
Wide Spectrum ◽  
Inhomogeneous Plasma ◽  
Practical Importance ◽  
Electromagnetic Decay ◽  
Stimulated Raman

We examine stimulated Raman scattering in an inhomogeneous plasma, and demonstrate that there may be an exponentially growing decay, which owes its existence to reflexion of the electromagnetic decay wave. Unlike absolute instabilities, which depend on simultaneous vanishing of the wavenumber mismatch and its derivative, it can occur over a wide spectrum of decay wave frequencies, and may, therefore, be of greater practical importance than those instabilities.

Competition between stimulated Raman scattering and two-plasmon decay in inhomogeneous plasma

2016 ◽  
Vol 23 (2) ◽  
pp. 022704 ◽  
Author(s):  
C. Z. Xiao ◽  
Z. J. Liu ◽  
C. Y. Zheng ◽  
X. T. He
Keyword(s):  
Raman Scattering ◽  
Stimulated Raman Scattering ◽  
Inhomogeneous Plasma ◽  
Stimulated Raman

scholarly journals Raman gain against a background of non-thermal ion fluctuations in a plasma

2000 ◽  
Vol 64 (5) ◽  
pp. 623-630
Author(s):  
H. C. BARR ◽  
T. J. M. BOYD ◽  
A. V. LUKYANOV
Keyword(s):  
Raman Scattering ◽  
Acoustic Waves ◽  
Stimulated Raman Scattering ◽  
Scattered Light ◽  
Inhomogeneous Plasma ◽  
Langmuir Wave ◽  
Raman Gain ◽  
Plasma Inhomogeneity ◽  
Ion Acoustic Wave ◽  
Ion Acoustic

A complex stimulated Raman scattering event against a background of non-thermal ion acoustic waves in an inhomogeneous plasma is described. We obtain analytic forms for the Raman gain due to a five-wave interaction consisting of conventional three-wave Raman scattering followed by the decay of the Raman Langmuir wave into a second Langmuir wave (or a second scattered light wave) and an ion acoustic wave. Very modest levels of ion waves produce a significant effect on Raman convective gain. A combination of plasma inhomogeneity and suprathermal ion fluctuations may offer a means for the control of Raman gain.

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