title: Dynamic two-center interference in high-order harmonic generation from molecules with attosecond nuclear motion.
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.
authors.affiliation: Department of Physics, Imperial College London, London, United Kingdom. sarah.baker@imperial.ac.uk
authors.forename: S
authors.initials: S
authors.lastname: Baker
authors.forename: J S
authors.initials: JS
authors.lastname: Robinson
authors.forename: M
authors.initials: M
authors.lastname: Lein
authors.forename: C C
authors.initials: CC
authors.lastname: Chirilă
authors.forename: R
authors.initials: R
authors.lastname: Torres
authors.forename: H C
authors.initials: HC
authors.lastname: Bandulet
authors.forename: D
authors.initials: D
authors.lastname: Comtois
authors.forename: J C
authors.initials: JC
authors.lastname: Kieffer
authors.forename: D M
authors.initials: DM
authors.lastname: Villeneuve
authors.forename: J W G
authors.initials: JW
authors.lastname: Tisch
authors.forename: J P
authors.initials: JP
authors.lastname: Marangos