State-Specific Orbital Alignment Effects in Electronic Energy Transfer: Sr(5s6p 1P1)+M Yields Sr(5s6p 3Pj, 4d5p 3F4, 3F3)+M

摘要

Orbital alignment effects are investigated for an energy transfer process involving several competing pathways in the system Sr (5s6p1P1) + rare gases and H2. Most of the cross sections to populate either (1) the combined 5s6p 3PJ and 4d5p 3F4 states or (2) the individual 4d5p 3F3 level show a marked preference for the perpendicular approach of the p orbital. However the cross section with He to populate the 3F3 state strongly favors the parallel orbital direction. Keywords: Alignment, Electronic energy transfer, Laser, Orbital effects, Strontium, Hydrogen.