Selective multi-line excitation of isotopologues with similar quantum spectra as a function of gas flow pressure, temperature, and laser pulse spectrum

In this talk, derivation of photo-absorption cross section for selective multi-line excitation of target isotopologues within the SILARC method as a function of laser pulse spectrum in irradiation cell implemented as laser resonator is reported. Derivation of more accurate expression for excitation rate, which takes into account effective fraction of molecules interacting with laser radiation, to estimate upper and lower bounds on laser intensity, implied by applicability of this method, is reported as well.