SUBSTANCE SEPARATION BY THE ACTION OF A PULSED IR LASER-RADIATION ON GAS-MIXTURE FLOWS THOUGHT CAPILLARIES

New aspects of substance separation by the laser driven diffusion of g aseous mixtures through capillaries are presented. By using the choppe d radiation of a low power CO2 laser, the experimental dependence of t he separation coefficient on the pulse frequency in mixtures containin g resonant and non-resonant gases was investigated. The induced effect s agree with a model in which the number density of adsorbed molecules should be connected to temporal characteristics of the radiation. By avoiding heating effects, a pulsed laser irradiation may provide a new approach related to the practical purposes of substance separation in metal capillaries.