Computational study of alkali metal-noble gas collisions in the presence of non-resonant lasers

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Abstract
The collision of Na with Ar in the presence of two non-resonant lasers, the rhodamine-110 dye laser and the Nd: glass laser, is investigated within a quantum mechanical close-coupled formalism employing realistic potential curves and transition dipole matrix elements. Both one- and two-photon processes are investigated, as a function of the frequency of the dye laser as well as the collision energy. Cross sections on the order of 10-19-10-18 cm2 and 10-22 cm2 are found for the one- and two-photon processes, respectively, for field intensities of 1 MW/cm2.