Circular dichroism in photoelectron angular distributions from two-color (1+1) REMPI of NO

Journal Article · Tue Dec 15 04:00:00 EST 1987 · J. Chem. Phys.; (United States)

DOI:https://doi.org/10.1063/1.453387· OSTI ID:5948982

Appling, J R; White, M G; Dubs, R L; Dixit, S N; McKoy, V

A detailed experimental and theoretical study of dichroic effects in photoelectron angular distributions is reported for (1+1), two-color REMPI of NO via the A /sup 2/..sigma../sup +/, v = 0 state. Optically aligned A state rotational levels are probed through ionization by circularly polarized light. Resultant photoelectron angular distributions exhibit significant left--right asymmetry, the phase and magnitude of which are shown to be related to the curvature of the excited state M/sub J/ distribution. Theoretical calculations involving a full ab initio treatment of the ionization dynamics result in circularly dichroic angular distribution (CDAD) parameters in good agreement with those derived experimentally. Additional effects including hyperfine depolarization and coherence are also discussed in relation to the observed CDAD data.

• Research Organization: Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11973
• DOE Contract Number: AC02-76CH00016; FG03-87ER60513; W-7405-ENG-48
• OSTI ID: 5948982
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 87:12; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ALIGNMENT
ANGULAR DISTRIBUTION
CHALCOGENIDES
DICHROISM
DISTRIBUTION
ELECTRON SPECTROSCOPY
IONIZATION
MULTI-PHOTON PROCESSES
NITRIC OXIDE
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
PHOTOELECTRON SPECTROSCOPY
PHOTOIONIZATION
SPECTROSCOPY