TIME AND ANGLE-RESOLVED CALCULATIONS IN DELAYED PHOTODISSOCIATION

Time-dependent calculations concerning delayed photodissociation of di atomic molecules are presented. The formalism is used to calculate the time-dependent anisotropy of the fragments resulting from photodissoc iation of H-2 via tunneling through the barrier of the i3PI(g) state. Only the rotational motion is treated time-dependently. The method pre sented is relatively simple and is non-perturbative in the treatment o f the interaction with the photon field. Oscillations in the photofrag ment anisotropy and in the photofragment yield are predicted at all ph oton field strengths upon switching on the interaction. It is argued t hat these effects are amenable to experimental verification with prese nt day pulsed laser systems.