Backscattering of a laser beam from electrostatic waves in a magnetized plasma

Journal Article · Thu Nov 01 04:00:00 EST 1979 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.325877· OSTI ID:5935055

Bilikmen, S; Willett, J E

Stimulated backscattering which arises from the parametric decay of an intense electromagnetic wave into an electrostatic wave and a backscattered electromagnetic wave is investigated. The analysis is facilitated by derivation of a pair of coupled differential equations for the amplitudes of the backscattered and scatterer waves. The absolute backscatter instability in homogeneous and inhomogeneous, bounded and unbounded plasmas is studied without invoking approximations which would permit independent treatment of the high-frequency electron modes and the low-frequency ion modes. A numerical study of a CO/sub 2/ laser beam propagating through a magnetized hydrogen plasma is presented which illustrates the breakdown of the independent treatment of the electron and ion modes.

• Research Organization: Department of Physics, University of Missouri-Columbia, Columbia, Missouri 65211
• OSTI ID: 5935055
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 50:11; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700108* -- Fusion Energy-- Plasma Research-- Wave Phenomena
BACKSCATTERING
CARBON DIOXIDE LASERS
CRYOGENIC FLUIDS
DIFFERENTIAL EQUATIONS
ELECTROMAGNETIC RADIATION
ELEMENTS
EQUATIONS
FLUIDS
GAS LASERS
HOMOGENEOUS PLASMA
HYDROGEN
LASER RADIATION
LASERS
LIGHT SCATTERING
MAGNETIZATION
NONMETALS
OSCILLATION MODES
PLASMA
RADIATIONS
SCATTERING
STABILITY