PLASMA INSTABILITIES IN A STEADY-STATE NONEQUILIBRIUM ONE-DIMENSIONALSOLID-STATE PLASMA OF FINITE-LENGTH

We show theoretically that strong plasma mode generation is possible i n a nonequilibrium steady-state quasi-one-dimensional bounded solid-st ate plasma, in which a nonequilibrium distribution is maintained by ap propriate injection/extraction of carriers. We calculate the density r esponse of realistic model systems using the random-phase approximatio n, determine the normal modes of the bounded carrier plasma, and show that strong plasma instabilities can be generated under suitable condi tions. Such stimulated plasma oscillations could lead to sources of te rahertz electromagnetic radiation.