Breakdown of the Strong-Field Approximation for Transverse Electron Momentum Distributions in Strong-Field Ionization

ORAL

Abstract

We investigated the transverse electron momentum distributions for the strong field ionization of atoms by laser pulses with varying ellipticity. We investigated two ionization regimes; tunelling and over the barrier ionization regimes. The over the barrier regime was accessed by using neon atoms in excited atomic metastable states and is the first such strong-field experiment to use such an atomic species. We will show that the transverse momentum distributions evolve in qualitatively different when the ellipticity of the driving laser pulses is varied.

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Authors

  • Robert Sang

    • Australian Attosecond Science Facility, Centre for Quantum Dynamics, Griffith University

  • J.E. Calvert

    • Australian Attosecond Science Facility, Centre for Quantum Dynamics, Griffith University

  • S. Goodall

    • Australian Attosecond Science Facility, Centre for Quantum Dynamics, Griffith University

  • X. Wang

    • Australian Attosecond Science Facility, Centre for Quantum Dynamics, Griffith University

  • H. Xu

    • Australian Attosecond Science Facility, Centre for Quantum Dynamics, Griffith University

  • A.J. Palmer

    • Australian Attosecond Science Facility, Centre for Quantum Dynamics, Griffith University

  • I.A. Ivanov

    • Centre for Relativistic Laser Science, Institute for Basic Science and Research School of Physical Sciences, The Australian National University

  • A.S. Kheifets

    • Research School of Physical Sciences, The Australian National University

  • D. Kielpinski

    • Australian Attosecond Science Facility, Centre for Quantum Dynamics, Griffith University

  • I.V. Litvinyuk

    • Australian Attosecond Science Facility, Centre for Quantum Dynamics, Griffith University