Parametric instability of plasma waves in a magnetic field, due to high-frequency electric fields

Robert P. H. Chang, M. Porkolab, B. Grek

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We have observed experimentally the parameteric excitation of ion acoustic waves and cyclotron harmonic waves by a high-frequency electric field with frequencies near the harmonics of the cyclotron frequency. We have verified both the wave-vector and the frequency selection rules. The measured threshold fields and growth rates are in good agreement with theory.

Original languageEnglish
Pages (from-to)206-209
Number of pages4
JournalPhysical Review Letters
Issue number4
Publication statusPublished - 1972


ASJC Scopus subject areas

  • Physics and Astronomy(all)

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