Abstract:
The harmonic oscillator model is used in the derivation of general functions describing the distribution of molecules with excited vibrational levels formed as a result of chemical reactions. Allowance is made for the vibration-vibrational (v–v) exchange and vibration-translational (v–T) relaxation. Specific reactions are considered and it is shown that the formulas obtained can be used to calculate the population inversion density and unsaturated gain for any vibration-rotational transition of a laser-active molecule.