• myGriffith
    • Staff portal
    • Contact Us⌄
      • Future student enquiries 1800 677 728
      • Current student enquiries 1800 154 055
      • International enquiries +61 7 3735 6425
      • General enquiries 07 3735 7111
      • Online enquiries
      • Staff phonebook
    View Item 
    •   Home
    • Griffith Research Online
    • Journal articles
    • View Item
    • Home
    • Griffith Research Online
    • Journal articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

  • All of Griffith Research Online
    • Communities & Collections
    • Authors
    • By Issue Date
    • Titles
  • This Collection
    • Authors
    • By Issue Date
    • Titles
  • Statistics

  • Most Popular Items
  • Statistics by Country
  • Most Popular Authors
  • Support

  • Contact us
  • FAQs
  • Admin login

  • Login
  • Charge Resonance Enhanced Ionization of CO2 Probed by Laser Coulomb Explosion Imaging

    Author(s)
    Bocharova, Irina
    Karimi, Reza
    Penka, Emmanuel F
    Brichta, Jean-Paul
    Lassonde, Philippe
    Fu, Xiquan
    Kieffer, Jean-Claude
    Bandrauk, Andre D
    Litvinyuk, Igor
    Sanderson, Joseph
    Legare, Francois
    Griffith University Author(s)
    Litvinyuk, Igor
    Year published
    2011
    Metadata
    Show full item record
    Abstract
    The process by which a molecule in an intense laser ?eld ionizes more ef?ciently as its bond length increases towards a critical distance Rc is known as charge resonance enhanced ionization (CREI). We make a series of measurements of this process for CO2 , by varying pulse duration from 7 to 200 fs, in order to identify the charge states and time scales involved. We ?nd that for the 4 nd higher charge states, 100 fs is the time scale required to reach the critical geometry hRCO i ?? 2:1 ?? A and h??OCO i ?? 163?? (equilibrium CO2 geometry is hRCO i ?? 1:16 ?? A and h??OCO i ?? 172?? ). The CO2 3 ...
    View more >
    The process by which a molecule in an intense laser ?eld ionizes more ef?ciently as its bond length increases towards a critical distance Rc is known as charge resonance enhanced ionization (CREI). We make a series of measurements of this process for CO2 , by varying pulse duration from 7 to 200 fs, in order to identify the charge states and time scales involved. We ?nd that for the 4 nd higher charge states, 100 fs is the time scale required to reach the critical geometry hRCO i ?? 2:1 ?? A and h??OCO i ?? 163?? (equilibrium CO2 geometry is hRCO i ?? 1:16 ?? A and h??OCO i ?? 172?? ). The CO2 3 olecule, however, appears always to begin dissociation from closer than 1.7 Aࠩndicating that dynamics on charge states lower than 3 s not suf?cient to initiate CREI. Finally, we make quantum ab initio calculations of ionization rates for CO2 and identify the electronic states responsible for CREI.
    View less >
    Journal Title
    Physical Review Letters
    Volume
    107
    Issue
    6
    DOI
    https://doi.org/10.1103/PhysRevLett.107.063201
    Subject
    Atomic and Molecular Physics
    Mathematical Sciences
    Physical Sciences
    Engineering
    Publication URI
    http://hdl.handle.net/10072/42781
    Collection
    • Journal articles

    Footer

    Disclaimer

    • Privacy policy
    • Copyright matters
    • CRICOS Provider - 00233E

    Tagline

    • Gold Coast
    • Logan
    • Brisbane - Queensland, Australia
    First Peoples of Australia
    • Aboriginal
    • Torres Strait Islander