Parametric decay of plasma waves near the upper-hybrid resonance

I. Y. Dodin; A. V. Arefiev

doi:10.1063/1.4979168

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arXiv · 1701.01690

Parametric decay of plasma waves near the upper-hybrid resonance

I. Y. Dodin·A. V. Arefiev

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Abstract

An intense X wave propagating perpendicularly to dc magnetic field is unstable with respect to a parametric decay into an electron Bernstein wave and a lower-hybrid wave. A modified theory of this effect is proposed that extends to the high-intensity regime, where the instability rate $\gamma$ ceases to be a linear function of the incident-wave amplitude. An explicit formula for $\gamma$ is derived and expressed in terms of cold-plasma parameters. Theory predictions are in reasonable agreement with the results of the particle-in-cell simulations presented in a separate publication.

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I. Y. Dodin, A. V. Arefiev. 2017-01-06. Parametric decay of plasma waves near the upper-hybrid resonance. https://doi.org/10.1063/1.4979168

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