Author： Arkhipenko V. I. Gusakov E. Z. Simonchik L. V. Usachonak M. S.
Publisher： Edp Sciences
E-ISSN： 1286-4854|93|2|25001-25001
ISSN： 0295-5075
Source： EPL (EUROPHYSICS LETTERS), Vol.93, Iss.2, 2011-02, pp. : 25001-25001
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Abstract
The possibility of deep parametric decay instability suppression by launching a complementary (small power) pump wave possessing a slightly shifted frequency is demonstrated experimentally. This suppression is achieved at an additional pump wave frequency shift equal to the frequency separation of ion acoustic eigenmodes excited in plasma as a result of absolute parametric decay instability. The recovery of microwave power absorption at the second pump turn on is shown using measurements of the plasma luminosity and accelerated electron fluxes.
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