Nonlinear Phenomena in Microphysics of Collisionless Plasmas. Application to Space and Laboratory Plasmas
J. Phys. IV France 05 (1995) C6-75-C6-78
Beat-Wave Experiments in the Micro Wave Range : Pump DepletionN.E. Andreev1, E.D. Campos2, B. Cros2, J. Godiot2, L.M. Gorbunov3 and G. Matthieussent2
1 Plasma Theory Division, Institute for High Temperatures of RAS, Izhorskaya St. 12/19, Moscow, 127412, Russia
2 Laboratoire de Physique des Gaz et des Plasmas, Université Paris XI-CNRS, 91405 Orsay cedex, France
3 Plasma Theory Division, Lebedev Physical Institute of RAS, Leninsky pr. 53, Moscow, 117924, Russia
Excitation of electron plasma waves by the mixing of two microwave beams is studied in a laboratory plasma. The first experimental observation of pump wave depletion is presented. The numerical calculations, based on one-dimensional model, describing space-time evolution of eight interacting waves, are in good agreement with experimental data. Estimation of the depletion on the basis of conservation laws is also discussed.
© EDP Sciences 1995