A method of extracting speed-dependent vector correlations from 2 + 1 REMPI ion images
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We present analytical expressions for extracting Dixon's bipolar moments in the semi-classical limit from experimental anisotropy parameters of sliced or reconstructed non-sliced images. The current method focuses on images generated by 2 + 1 REMPI (Resonance Enhanced Multi-photon Ionization) and is a necessary extension of our previously published 1 + 1 REMPI equations. Two approaches for applying the new equations, direct inversion and forward convolution, are presented. As demonstration of the new method, bipolar moments were extracted from images of carbonyl sulfide (OCS) photodissociation at 230 nm and NO2 photodissociation at 355 nm, and the results are consistent with previous publications.
author list (cited authors)
Wei, W., Wallace, C. J., Grubb, M. P., & North, S. W.