Published November 2011
| Version v1
Journal article
Dynamic modification of the fragmentation of autoionizing states of O2+
Creators
- 1. J. R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506 (United States)
- 2. Lawrence Berkeley National Laboratory, Chemical Sciences, Berkeley, California 94720 (United States)
- 3. Institut fuer Kernphysik, University of Frankfurt, D-60438 Frankfurt (Germany)
- 4. Physics Department, American University of Sharjah, Sharjah (United Arab Emirates)
- 5. Department of Physics, Auburn University, Auburn, Alabama 36849 (United States)
- 6. Department of Applied Science, University of California, Davis, California 95616 (United States)
Description
The dynamic process of fragmentation of excited states of the molecular oxygen cation is investigated in a two-part study. First, using monochromatic 41.6 eV radiation and cold-target recoil-ion momentum spectroscopy detection of O+ + O+ ion pairs and associated electrons, we establish that this channel is populated only by an indirect process enabled by autoionization of excited oxygen atoms and identify the final active potential curves. Second, we probe the dynamics of this process using an attosecond pulse train of 35-42 eV EUV followed by an intense IR laser pulse. The results are compared with a model calculation.
Additional details
Identifiers
Publishing Information
- Journal Title
- Physical Review. A
- Journal Volume
- 84
- Journal Issue
- 5
- Journal Page Range
- p. 053406-053406.5
- ISSN
- 1050-2947
- CODEN
- PLRAAN
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 44051959
- Subject category
- S74: ATOMIC AND MOLECULAR PHYSICS;
- Descriptors DEI
- ATOMS; AUTOIONIZATION; CATIONS; ELECTRONS; EV RANGE; EXCITED STATES; EXTREME ULTRAVIOLET RADIATION; ION PAIRS; MOLECULAR IONS; MONOCHROMATIC RADIATION; OXYGEN; OXYGEN IONS; POTENTIALS; PULSES; RECOILS; SPECTROSCOPY
- Descriptors DEC
- CHARGED PARTICLES; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ELEMENTS; ENERGY LEVELS; ENERGY RANGE; FERMIONS; IONIZATION; IONS; LEPTONS; NONMETALS; RADIATIONS; ULTRAVIOLET RADIATION
Optional Information
- Notes
- (c) 2011 American Institute of Physics