Finite Larmor radius effects in stimulated Raman scattering

Journal Article · Mon Apr 01 00:00:00 EST 1985 · Phys. Fluids; (United States)

DOI:https://doi.org/10.1063/1.864994· OSTI ID:5965611

Boyd, T J.M.; Gardner, G A; Rankin, R

Stimulated Raman scattering from a magnetized plasma has been examined using the set of Vlasov--Maxwell equations. The incident laser light, propagating in the form of an extraordinary mode, decays into a scattered extraordinary mode together with electron-Bernstein waves. For sufficiently strong magnetic fields and high electron temperatures, the growth rates of these waves become comparable to the field-free values. At relatively low plasma densities the magnetic field can result in scattered light at ..omega../sub 0//2 (where ..omega../sub 0/ is the laser frequency), a frequency associated with radiation emitted from the quarter-critical density region of unmagnetized plasmas. We have compared the results from the kinetic theory analysis with observations from numerical experiments using a 1 1/2 -D electromagnetic particle code and found them to be in good agreement.

• Research Organization: Department of Physics, University College of North Wales, Bangor, Gwynedd LL57 2UW, Wales
• OSTI ID: 5965611
• Journal Information: Phys. Fluids; (United States), Vol. 28:4
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
LASER-PRODUCED PLASMA
BERNSTEIN MODE
LARMOR RADIUS
RAMAN EFFECT
BOLTZMANN-VLASOV EQUATION
COHERENT SCATTERING
ELECTRON TEMPERATURE
INSTABILITY GROWTH RATES
LASER RADIATION
MAGNETIC FIELDS
DIFFERENTIAL EQUATIONS
ELECTROMAGNETIC RADIATION
EQUATIONS
OSCILLATION MODES
PARTIAL DIFFERENTIAL EQUATIONS
PLASMA
RADIATIONS
SCATTERING
700108* - Fusion Energy- Plasma Research- Wave Phenomena