Gas dynamic lasers of a short and medium IR range on halogen molecules: analysis and perspectives

Abstract

Theoretical and numerical analysis of energetic characteristics of gasdynamic lasers on active media containing diatomic metastable molecules H2, D2, N2 and halogen molecules was carried out. It was estimated that the most promising from the point of view of receiving the highest specific radiation energy and conversion efficiency of vibrational energy are mixtures D2-DCl, D2-HBr, N2-DCl, N2-DJ, N2-DBr, D2-HJ and H2-HCl. At thermal excitation they allow to achieve efficiency from 1% to 4% and at electrodischarge excitation from 10% to 25%, the specific radiation energy reaching 60 - 300 Joule/g.