Abstract

The perspective candidates for chemical laser action in the visible region are IF molecules mainly because of their extremely high stimulated emission cross-section, which equals approximatelly 10^-16 cm². In accordance with theoretical prospects chemically induced lasing on IFB→X transition (λ= 635 nm) may be effectively realized, if chemical reactions do proceed in the supersonic expanding high-enthalpy flow of laser mixture.^[1,2] In the present investigation this approach was accomplished experimentally using a shock tube facility with a supersonic nozzle at the endplate, which enables to form the gas flow with desirable thermodynamic parameters.

© 1992 IQEC