State-to-state reaction dynamics of HF(v = 2) with Sa and Sr

Abstract

HF gas molecules in 11 = 2 are produced in a beam-gas reaction system using an intracavity, multiply resonant HF chemical laser to consecutively pump HF(11 = 0) using the PI (4) and P2 (3) HF lasing lines. A beam of Ba or Sr reacts with the perturbed reagent gas to form the metal monohalide. The internal state distribution of the MF product is probed using pulsed laser induced fluorescence. In both reactions, products are seen with internal energies out to nearly the exothermic limit, but fractional vibrational energy releases are small and apparently decrease with increasing reagent vibration. State-ta-state cross sections for 11 = 2 reagents, relative to those for 11 = 1 and 11 = 0 are reported.