Resonant lowering of the threshold for a parametric instability of an inhomogeneous plasma in a frequency-modulated pump field
Arkhipenko V. I., Budnikov V. N., Gusakov E. Z., Kaganskaya N. M., Selenin V. L., Simonchik L. V.
A resonant lowering of the threshold for the onset of a parametric instability of an inhomogeneous plasma has been observed. The effect is resonant in terms of the rate of the frequency modulation of the pump wave. The physical reason for the effect has been determined: a suppression of convective losses when the velocity of the decay point is equal to the group velocity of one of the waves. © 1994 American Institute of Physics.