Photoelectron angular distributions from multiphoton ionization of cesium atoms
Journal Article
·
· Phys. Rev. A; (United States)
We present both experimental and theoretical studies of resonantly enhanced multiphoton ionization of cesium atoms. Photoelectron angular distributions for two-photon ionization via the one-photon-allowed 7p /sup 2/P/sub 1/2,3/2/ and 8p /sup 2/P/sub 1/2,3/2/ intermediate states and three-photon ionization via the two-photon-allowed 8d /sup 2/D/sub 5/2,3/2/ resonant intermediate states are reported. The photoelectrons are energy analyzed with a spherical-sector electrostatic energy analyzer with an energy resolution of approx.0.1 eV and angular resolution of approx. +- 2/sup 0/. A straightforward calculation based upon a fine-structure scheme gives excellent agreement with the measured angular distributions for the /sup 2/P/sub 1/2/ states. The laser pulse duration is comparable to the hyperfine precession period which allows the hyperfine coupling to partially destroy the anisotropy initially produced in the /sup 2/P/sub 3/2/ resonant intermediate states. Quantitative calculations including hyperfine coupling take this into account and provide an expression which gives a reasonable fit to the /sup 2/P/sub 3/2/ data.
- Research Organization:
- Chemical Physics Section, Health and Safety Research Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 6235874
- Journal Information:
- Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 30:4; ISSN PLRAA
- Country of Publication:
- United States
- Language:
- English
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Multiphoton ionization photoelectron spectroscopy of xenon: Experiment and theory
Journal Article
·
Mon Oct 01 00:00:00 EDT 1984
· Phys. Rev. A; (United States)
·
OSTI ID:6045929
Photoelectron angular distributions from resonantly enhanced multiphoton ionization of xenon via the 6s(3/2)/sup 0//sub 1/ and 6s'(1/2)/sup 0//sub 1/ states: experiment and theory
Journal Article
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Fri May 01 00:00:00 EDT 1987
· J. Opt. Soc. Am. B: Opt. Phys.; (United States)
·
OSTI ID:6835850
Multiphoton ionization photoelectron spectroscopy of xenon: Experiment and theory
Conference
·
Fri Oct 20 00:00:00 EDT 1989
· AIP Conference Proceedings (American Institute of Physics); (USA)
·
OSTI ID:6903991
Related Subjects
640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ALKALI METALS
ANGULAR DISTRIBUTION
CESIUM
DISTRIBUTION
ELECTRON SPECTROSCOPY
ELECTRONIC STRUCTURE
ELEMENTS
IONIZATION
METALS
MULTI-PHOTON PROCESSES
PHOTOELECTRON SPECTROSCOPY
PHOTOIONIZATION
SPECTROSCOPY
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ALKALI METALS
ANGULAR DISTRIBUTION
CESIUM
DISTRIBUTION
ELECTRON SPECTROSCOPY
ELECTRONIC STRUCTURE
ELEMENTS
IONIZATION
METALS
MULTI-PHOTON PROCESSES
PHOTOELECTRON SPECTROSCOPY
PHOTOIONIZATION
SPECTROSCOPY