Emission of zinc selenide plates excited by a pulsed electric field

The emission power of zinc selenide plates placed in the air gap between electrodes is determined as a function of the amplitude of applied high-voltage nanosecond pulses and the gap width. The laser emission spectra of samples excited by an electron beam and an electric field are presented. The influence of the electrode shape on the emission pattern is studied. An increase in a laser pulse duration compared to the duration of an exciting high-voltage pulse was observed. It is assumed that this is explained by recombination emission processes proceeding in a dense electron — hole plasma.