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Updated: Jul 2, 2026

Direct Imaging of Laser-driven Ultrafast Molecular Rotation
Published on: February 4, 2017
Dynamic two-center interference in high-order harmonic generation from molecules with attosecond nuclear motion
S Baker1, J S Robinson, M Lein
1Department of Physics, Imperial College London, London, United Kingdom. sarah.baker@imperial.ac.uk
Abstract:
We report a new dynamic two-center interference effect in high-harmonic generation from H2, in which the attosecond nuclear motion of H2+ initiated at ionization causes interference to be observed at lower harmonic orders than would be the case for static nuclei. To enable this measurement we utilize a recently developed technique for probing the attosecond nuclear dynamics of small molecules. The experimental results are reproduced by a theoretical analysis based upon the strong-field approximation which incorporates the temporally dependent two-center interference term.
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