NEW MECHANISM FOR ELECTROMAGNETIC-FIELD GENERATION BY ACOUSTIC-WAVES IN PARTIALLY-IONIZED PLASMAS

Authors
ABURJANIA GD MACHABELI GZ
Citation
Gd. Aburjania et Gz. Machabeli, NEW MECHANISM FOR ELECTROMAGNETIC-FIELD GENERATION BY ACOUSTIC-WAVES IN PARTIALLY-IONIZED PLASMAS, Physics letters. A, 226(3-4), 1997, pp. 199-204
Citations number
12
Categorie Soggetti
Physics
Journal title
Physics letters. A → ACNP
ISSN journal
03759601
Volume
226
Issue
3-4
Year of publication
1997
Pages
199 - 204
Database
ISI
SICI code
0375-9601(1997)226:3-4<199:NMFEGB>2.0.ZU;2-8
Abstract
A new mechanism for the transformation of long-wavelength acoustic wav es into electromagnetic ones in partially ionized plasmas is suggested . It is shown that an acoustic wave involves in collective motion char ged particles of media by means of collisions. Relative motion of char ged particles excites the alternating current with arbitrary phase and , consequently, there occurs parametric generation of electromagnetic fields. The growth rates, excitement tresholds, spectra and polarizati on of electromagnetic disturbances are determined.