Multiphoton photofragmentation of SO2 at 248 nm

Abstract
Sequential two‐photon photoexcitation of SO2 at 248 nm is found to lead to a number of primary fragments including S(3P) and SO(X 3Σ). Further excitation of some of these photoproducts was also observed, occurring by both linear and two‐quantum mechanisms. The resulting molecular XB (v\,2) ultraviolet fluorescence from SO and the atomic 3P3S vacuum ultraviolet emission from S atoms were detected and an analysis of the energy flow patterns was made.