Phase-tagged non-sequential double ionization of N$_2$, O$_2$, and CO in 4-fs laser fields

ORAL

Abstract

Being widely regarded as a prototype process for correlated dynamics, non-sequential double ionization (NSDI) has been the subject of numerous experimental and theoretical studies. It is generally understood in the framework of a recollision model. Using reaction microscope detection combined with a single shot phase meter, we phase-tag each double ionization event and thus study the sub-cycle dynamics of the NSDI by exposing the target particles to known near-single cycle waveforms. In a recent study on NSDI in argon using this technique, we obtained the CEP dependence of the total double ionization yield and the asymmetric longitudinal recoil momentum, from which our understanding of the NSDI process in atoms can be rigorously tested. Here we extend our studies to NSDI in N$_{2}$, O$_{2}$, and CO in 4-fs laser fields and gain further insight into the recollision process for molecules.

*We acknowledge support by the DFG, DOE and NSF.

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Authors

  • Nora G. Johnson

    • J. R. Macdonald Laboratory, Kansas State University, USA
    • J.R. Macdonald Laboratory, Department of Physics, Kansas State University

  • M. Kuebel

    • Max-Planck-Institut fuer Quantenoptik, Germany

  • K. J. Betsch

    • University of Virginia, USA

  • Itzik Ben-Itzhak

    • J.R. Macdonald Laboratory, Department of Physics, Kansas State University
    • J. R. Macdonald Laboratory, Kansas State University, USA
    • J. R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, KS 66506, USA
    • J.R. Macdonald Laboratory, Physics Dept, Kansas State University

  • R.R. Jones

    • University of Virginia, USA

  • G.G. Paulus

    • Institut fuer Optik und Quantenelektronik, Friedrich-Schiller-Universitaet, Germany

  • R. Moshammer

    • Max-Planck-Institut fuer Kernphysik, Germany

  • J. Ullrich

    • Max-Planck-Institute for Nuclear Physics
    • Max-Planck-Institut fuer Kernphysik, Germany

  • B. Bergues

    • Max-Planck-Institut fuer Quantenoptik, Germany

  • M. Kling

    • Max-Planck-Institut fuer Quantenoptik, Germany
    • Max Planck Institut of Quantum Optics, Garching, Germany \& J.R. Macdonald Laboratory, Kansas-State University, KS, USA