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Updated: Feb 6, 2026

Direct Imaging of Laser-driven Ultrafast Molecular Rotation
Published on: February 4, 2017
Multiple ionization bursts in laser-driven hydrogen molecular ion
Norio Takemoto1, Andreas Becker
1JILA and Department of Physics, University of Colorado, 440 UCB, Boulder, Colorado 80309-0440, USA.
Abstract:
Theoretical study on H2(+) in an intense infrared laser field on the attosecond time scale reveals that the molecular ion shows multiple bursts of ionization within a half-cycle of the laser field oscillation, in contrast to the widely accepted tunnel ionization picture for an atom. These bursts are found to be induced by transient localization of the electron at one of the nuclei, and a relation between the time instants of the localization and the vector potential of the laser light is derived. A scheme is proposed to probe the localization dynamics by an extreme ultraviolet laser pulse.
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