DC Sliced Ion Imaging Study of Photodissociation Dynamics: Comparison between Conditions of Simulations and Experiments

Vector correlations between parent molecule transition dipole moments, photofragment velocity angular momentum vectors, can provide valuable information about excited states symmetry, non-adiabatic dynamics and the forces and torques operating during fragmentation. Accurate molecular descriptions of photo-induced chemical reactions require detailed experimental results which measure vector properties. Sliced velocity mapped ion imaging is a powerful method to measure the vector correlations in the products of photo-initiated reactions. Simulations of different DC sliced imaging conditions using Simion 8.1 program have performed to assist in the interpretation of experimental data. We have also recently re-assembled and modified a ion imaging apparatus and collected ion images of several photodissociation systems. Comparisons between these simulations and our experimental images will be presented.~We are optimistic that our newly developed mathematical methods of extracting vector correlation information from sliced imaging anisotropy, will permit detailed study of a variety of benchmark dynamical systems.