Plasma physics
The interaction of plasma media in HCD with external light, including laser light were investigated. The spontaneous coherent conductivity in a negative glow was observed and ascribed to the self-aligned excited states. It is an integral galvanic manifestation of the spontaneous coherence. Deconvolution of experimental dynamic opto-galvanic signals in the glow plasma of HCD was done. The signals were fitted with theoretical determined function and the decay lifetimes of the states, taking part in the processes, which were responsible for the signal creation at different discharge currents.