Resonant absorption of an intense electromagnetic waves in an inhomogeneous plasma

Journal Article · Wed Jul 01 04:00:00 EDT 1981 · Sov. J. Plasma Phys. (Engl. Transl.); (United States)

OSTI ID:5543281

Gil'denburg, V B; Litvak, A G; Petrova, T A; Feigin, A M

The self-consistent steady-state distributions of the field and plasma density are calculated numerically for the intense p-polarized electromagnetic wave obliquely incident on an inhomogeneous plasma slab. The resonant absorption is also calculated. If the wave is sufficiently intense, the density profile in the plasma-resonance region acquires a characteristic step-shaped deformation as a result of the ponderomotive force, and the absorption changes substantially. For both of the loss mechanisms considered (electron collisions and energy conversion into a longitudinal wave) the fraction of the power which is absorbed initially increases with increasing amplitude, approaching 100%, and then it drops markedly.

• Research Organization: Institute of Applied Physics, Academy of Sciences of the USSR
• OSTI ID: 5543281
• Journal Information: Sov. J. Plasma Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Plasma Phys. (Engl. Transl.); (United States) Vol. 7:4; ISSN SJPPD
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700101 -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
700108* -- Fusion Energy-- Plasma Research-- Wave Phenomena
ABSORPTION
ELECTROMAGNETIC RADIATION
HEATING
HIGH-FREQUENCY HEATING
INHOMOGENEOUS PLASMA
PLASMA
PLASMA HEATING
POLARIZATION
RADIATIONS
RESONANCE ABSORPTION