Spin-polarized hydrogen atoms from molecular photodissociation
T.P. Rakitzisi,1,3 P.C. Samatzis,2,3 R.L. Toomes,3 T.N. Kitsopolous2,3
1Department of Physics, University of Crete
2Department of Chemistry, University of Crete
3Institure of Electronic Structure and Laser, Foudation for Research and Technology-Hellas, 71110 Heraklion-Crete, Greece
A. Brown
Department of Chemistry and Cherry L. Emerson Center for Scientific Computation, Emory University, Atlanta, GA 30322
G.G. Balint-Kurti
School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
O.S. Vasyutinskii
Ioffe Physico-Technical Institute, Russian Academy of Sciences, 194201 St-Petersburg, Russia
J.A. Beswick
Laboratoire de Collisions, Agregats de Reactivite, IRSAMC, Universite Paul Sabetier, 31062 Toulouse, France
Abstract
The production of spin polarized hydrogen atoms (SPH) from the photodissociation of hydrogen chloride (HCl) with circularly polarized 193 nm light is inferred from the measurement of the complete angular momentum distributions of ground state Cl(2P3/2) and excited state Cl(2P1/2) cofragments using slice imaging. The experimentally measured and ab initio predicted a(k)q(p) parameters, which describe the single-surface and multiple-surface-interference contributions to the angular momentum distributions, are in excellent agreement. For laser pulses longer than about 0.7 ns, the polarization of the electron and the proton are both 36%.
Return to Dr. Alex Brown's Publications
This page maintained by alex.brown@ualberta.ca of the Department of Chemistry, University of Alberta
Last updated August 8, 2003.