Ion cyclotron wave excitation by double resonance parametric coupling
The term "Double Resonance" indicates generally a non-linear coupling between an electron plasma resonance (in this case, the upper hybrid, UH) and a low frequency eigenmode (typically, in a magnetised plasma, the ion cyclotron mode). The modulated parametric decay has been investigated in the past, both in theory and in experiments, mostly in the context of plasma heating, in order to decrease the power threshold required in the case of a monochromatic pump wave. More recently, renewed interest has been shown in experiments on large scale modification of the ionosphere. The experiment reported studies the modulated UH resonance as an internal antenna for electrostatic ion cyclotron (EIC) waves. A method for a selective excitation of the Bernstein mode, based on the choice of the modulation excursion, is proposed.
Bibliographic Reference: Paper presented: 17th EPS Conference on Controlled Fusion and Plasma Heating, Amsterdam (NL), June 25-29, 1990
Availability: Available from (1) as Paper EN 35294 ORA
Record Number: 199011552 / Last updated on: 1994-12-02
Original language: en
Available languages: en