EXCITATION OF UPPER-HYBRID WAVES BY A THERMAL PARAMETRIC INSTABILITY.

M. C. Lee, Spencer Kuo

Research output: Contribution to journalArticle

Abstract

A purely growing instability characterized by a four-wave interaction has been analyzed in a uniform, magnetized plasma. Up-shifted and down-shifted upper-hybrid waves and a non-oscillatory mode can be excited by a pump wave of ordinary rather than extraordinary polarization in the case of ionospheric heating. The effect of ionospheric inhomogeneity is estimated, showing a tendency to raise the thresholds of the instability. When applied to ionospheric heating experiments, the present theory can explain the excitation of field-aligned plasma lines and ionospheric irregularities with a continuous spectrum ranging from meter-scale to hundreds of meter-scale.

Original languageEnglish (US)
Pages (from-to)463-478
Number of pages16
JournalJournal of Plasma Physics
Volume30
Issue numberpt 3
StatePublished - Dec 1983

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ionospheric heating
ionospherics
continuous spectra
wave interaction
irregularities
excitation
tendencies
inhomogeneity
pumps
thresholds
polarization

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Condensed Matter Physics

Cite this

EXCITATION OF UPPER-HYBRID WAVES BY A THERMAL PARAMETRIC INSTABILITY. / Lee, M. C.; Kuo, Spencer.

In: Journal of Plasma Physics, Vol. 30, No. pt 3, 12.1983, p. 463-478.

Research output: Contribution to journalArticle

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