Decay--dissipative instability of a surface wave in a semi-infinite plasma

Journal Article · Thu Nov 01 04:00:00 EST 1979 · Sov. J. Plasma Phys. (Engl. Transl.); (United States)

OSTI ID:5384740

Pavlenko, V N; Revenchuk, S M

The decay--dissipative instability of a surface plasma wave in a semi-infinite isotropic plasma is studied. This instability results from a three-wave resonant interaction. The resonant damping of the interacting waves strongly affects the growth rates and thresholds for this instability. The instability of a surface plasma wave which generates a surface plasma wave and a surface or internal ion acoustic wave (the three-wave decay--dissipative instability) is studied. A study is also made of the instability which results from the coupling of two resonant three-wave interactions: the decay of a surface plasma wave into a surface plasma wave and a surface or internal ion acoustic wave and the coalescence of a pump surface plasma wave with the ion acoustic wave which it excites (the four-wave decay--dissipative instability). The threshold for the four-wave instability is higher than that for the three-wave decay--dissipative instability. Some typical features of the four-wave decay--dissipative instability are the excitation of a ''violet'' satellite, at a frequency above the pump frequency, and a frequency shift of the growing waves.

• Research Organization: Institute of Physics, Academy of Sciences of the Ukrainian SSR, Kiev
• OSTI ID: 5384740
• Journal Information: Sov. J. Plasma Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Plasma Phys. (Engl. Transl.); (United States) Vol. 5:6; ISSN SJPPD
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700107* -- Fusion Energy-- Plasma Research-- Instabilities
700108 -- Fusion Energy-- Plasma Research-- Wave Phenomena
DECAY INSTABILITY
FLUID MECHANICS
HYDRODYNAMICS
INSTABILITY
ION ACOUSTIC WAVES
ION WAVES
MAGNETOHYDRODYNAMICS
MECHANICS
PARAMETRIC INSTABILITIES
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
PLASMA WAVES