Expanding plasma as active medium of pulsed gas lasers

Abstract

In this paper, sealed-off laser sources based on pulsed surface discharge with expanding plasma are described. Plasma dynamics is analyzed. Data on electron number density obtained in our experiments are presented. Experimental results on laser action in plasma are discussed. Formation of inverse population as well as influence of plasma expansion on level population are considered. A construction of laser tube with pulsed surface discharge and additional illumination lamp is proposed. Data obtained with such a tube are presented.

<title>Adiabatic theory of plasma recombination and absorption of resonance radiation in the atmosphere</title>

“…It was first shown in Ref. 4 that the rate of three-particle recombination of plasma in the atmosphere at expansion under adiabatic conditions decreases for all time. References 5 and 6 consider the features of adiabatic plasma evolution in the atmosphere.…”