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arXiv · 0711.1958

Intrinsic channel closing in strong-field single ionization of H2

Stefan Pieper·Manfred Lein
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Abstract

The ionization of H2 in intense laser pulses is studied by numerical integration of the time-dependent Schrödinger equation for a single-active-electron model including the vibrational motion. The electron kinetic-energy spectra in high-order above-threshold ionization are strongly dependent on the vibrational quantum number of the created H2+ ion. For certain vibrational states, the electron yield in the mid-plateau region is strongly enhanced. The effect is attributed to channel closings, which were previously observed in atoms by varying the laser intensity.

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Stefan Pieper, Manfred Lein. 2008-02-25. Intrinsic channel closing in strong-field single ionization of H2. https://doi.org/10.1103/physreva.77.041403

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