TEA CO2 laser-induced selective molecular dissociation in a cold shock wave

Selective molecular IR multiphoton dissociation (SF6 was taken as an example) was studied under the nonequilibrium conditions of a cold shock wave (pressure shock) formed upon the interaction of a pulsed gas-dynamically cooled molecular flow with a solid surface. An anomalously large gain (by more than an order of magnitude) in the product yield (compared to the molecular excitation in an unperturbed flow) with a minor selectivity loss (less than 25-30%) was observed. (C) 2000 MAIK "Nauka/Interperiodica".