On the calculation of resonance Raman spectra

A general formalism for resonance Raman scattering is presented which treats both linear and quadratic electron-photon interactions, The time correlation functions which are involved in resonance Raman scattering both from a single vibronic state and from the initially distributed vibronic states are calculated, The expressions are exact for a displaced-distorted oscillator system at all temperatures, The effects of distortions of potential energy surfaces on absorption, resonance Raman excitation profiles and resonance Raman spectra were also investigated quantitatively. (C) 1997 by John Whey & Sons, Ltd.