Raman emission as a probe for photodissociation dynamics

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Abstract
A time-dependent wave packet propagation method based on the split operator technique is used to describe the complete history of photodissociation. Three successive steps of the dynamics are discussed by setting the analogy with the energy dependent version of the quantum theory: namely the absorption, the Raman emission, and the fragments internal state analysis. Informations concerning early (absorption), intermediate (Raman emission), and long time dynamics (fragments internal distribution) are related to the parameters of the initial ground and final dissociative potential energy surfaces and to the excitation laser wavelength. The photodissociation of ICN(C̃ 1A′) is taken as a numerical illustration and comparisons are presented with previous calculations carried in the energy frame.