Time-dependent theory of parametric plasma instabilities

It has been found that the laser radiation line width influences the threshold values of the radiation flux at which the interaction between the radiation and the laser plasma becomes anomalous. In a hydrogen laser plasma with an electron temperature of 1 keV and density of 10²¹ cm^–3 the lowest value of this threshold radiation flux from a neodymium laser increases by more than an order of magnitude when the spectral width increases to 10^–2ω ₀.