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Title: Plasma wave aided two photon decay of an electromagnetic wave in a plasma
Authors: Magesh Kumar, K. K
Singh, R
Krishan, V
Issue Date: Nov-2014
Publisher: American Institute of Physics Publishing
Citation: Physics of Plasmas, Vol. 21, No. 11, 112112
Abstract: The presence of a Langmuir wave in an unmagnetized plasma is shown to allow parametric decay of an electromagnetic wave into two electromagnetic waves, which is otherwise not allowed due to wave number mismatch. The decay occurs at plasma densities below one ninth the critical density and the decay waves propagate at finite angles to the pump laser. Above the threshold, the growth rate scales linearly with the amplitude of the Langmuir wave and the amplitude of the pump electromagnetic wave. The frequency ω of the lower frequency decay wave increases with the angle its propagation vector makes with that of the pump. The growth rate, however, decreases with ω .
Description: Restricted Access
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Appears in Collections:IIAP Publications

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