Electromagnetic decay into a surface plasma wave and an ion acoustic surface wave in a semi-infinite plasma

Journal Article · Fri May 01 04:00:00 EDT 1981 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.329193· OSTI ID:6423219

Yasumoto, K

The decay instability of a high-frequency surface plasma wave and a low-frequency ion acoustic surface wave, which arises when an intense electromagnetic plane wave is incident perpendicularly on an unmagnetized semi-infinite plasma from a vacuum, is investigated on the basis of two-fluid hydrodynamics for warm electrons and cold ions. The growth rate for the instability and the threshold amplitude of the incident wave are determined. The growth rate is compared numerically with that for a similar decay instability of the corresponding volume-wave modes. In contrast to the ''volume'' decay instability, the present one gives an appreciable growth rate even if the frequency of the incident wave is lower than the electron plasma frequency.

• Research Organization: Faculty of Engineering, Kyushu University, Fukuoka-shi 812, Japan
• OSTI ID: 6423219
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 52:5; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700108* -- Fusion Energy-- Plasma Research-- Wave Phenomena
COMPARATIVE EVALUATIONS
DECAY INSTABILITY
ELECTROMAGNETIC RADIATION
ELECTRONS
ELEMENTARY PARTICLES
FERMIONS
FLUID MECHANICS
FREQUENCY DEPENDENCE
HYDRODYNAMICS
INSTABILITY
ION ACOUSTIC WAVES
ION WAVES
LANGMUIR FREQUENCY
LEPTONS
MATHEMATICAL MODELS
MECHANICS
PLASMA INSTABILITY
PLASMA WAVES
RADIATIONS
SURFACES