Nonlinear upper hybrid waves and the induced density irregularities

Spencer P. Kuo

Research output: Contribution to journalArticlepeer-review


Upper hybrid waves are excited parametrically by the O-mode high-frequency heater waves in the ionospheric heating experiments. These waves grow to large amplitudes and self-induced density perturbations provide nonlinear feedback. The lower hybrid resonance modifies the nonlinear feedback driven by the ponderomotive force; the nonlinear equation governing the envelope of the upper hybrid waves is derived. Solutions in symmetric alternating functions, in non-alternating periodic functions, as well as in solitary functions are shown. The impact of lower hybrid resonance on the envelope of the upper hybrid waves is explored; the results show that both the spatial period and amplitude are enlarged. The average fluctuation level of induced density irregularities is also enhanced. In the soliton form, the induced density cavity is widened considerably.

Original languageEnglish (US)
Article number082904
JournalPhysics of Plasmas
Issue number8
StatePublished - Aug 1 2015

ASJC Scopus subject areas

  • Condensed Matter Physics


Dive into the research topics of 'Nonlinear upper hybrid waves and the induced density irregularities'. Together they form a unique fingerprint.

Cite this