Appreciable increase of the dissociation rate of polyatomic molecules in the red shift of the nonresonant frequency under conditions of two-frequency laser action
Akulin V.M., Alimpiev S.S., Karlov N.V., Prokhorov A.M., Sartakov B.C., Khokhlov E.M.
We report experimental observations of an appreciable increase in the rate of dissociation of the molecules SiF4 and SF6 by radiation of two pulsed C02 lasers in the case when the emission frequency of one of them is strongly shifted towards longer wavelengths relative to the frequency of the principal vibrational transition. The observed effect is attributed to singularities of the dispersion curve of the band structure of the quasi-continuum in the spectrum of the high vibrational states of the molecule.