Resonant excitation of the upper hybrid wave by two em beams

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

DOI:https://doi.org/10.1063/1.326146· OSTI ID:6319084

Sodha, M S; Maheshwari, K P; Sharma, R P; Kaushik, S C

Resonant excitation of an upper hybrid wave by the mixing of two coaxial Gaussian em beams in a collisionless hot magnetoplasma has been investigated; the electric vectors of beams are polarized along a uniform static magnetic field and the beams propagate perpendicular to the magnetic field. The resonant excitation of the upper hybrid wave occurs when the difference frequency of the two em waves and difference of their propagation vectors satisfy the dispersion relation corresponding to the upper hybrid wave. Furthermore, because of the Gaussian intensity distribution of the two beams the electrons are redistributed by the ponderomotive force, cross focusing of the two em beams occurs, and the power of the excited upper hybrid beam (which depends on the background electron concentration, the intensities of the two em beams, and the magnetic field) are correspondingly modified. The present analysis is also applicable to an inhomogeneous magnetoplasma in the WKB approximation.

• Research Organization: Department of Physics and Centre of Energy Studies, Indian Institute of Technology, New Delhi-110029 India
• OSTI ID: 6319084
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 50:3; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700108* -- Fusion Energy-- Plasma Research-- Wave Phenomena
COLLISIONLESS PLASMA
DATA
DATA FORMS
DISPERSION RELATIONS
ELECTROMAGNETIC RADIATION
ENERGY-LEVEL TRANSITIONS
EXCITATION
HEATING
HOT PLASMA
INFORMATION
ISOLATED VALUES
MAGNETIC FIELDS
NUMERICAL DATA
OPTICAL MODES
OSCILLATION MODES
PLASMA
PLASMA HEATING
RADIATIONS
RESONANCE
THEORETICAL DATA
WAVE PROPAGATION