title: Measurement of the subcycle timing of attosecond XUV bursts in high-harmonic generation.
abstract: The absolute timing of the high-harmonic attosecond pulse train with respect to the generating IR pump cycle has been measured for the first time. The attosecond pulses occur 190+/-20 as after each pump field maxima (twice per optical cycle), in agreement with the "short" quantum path of the quasiclassical model of harmonic generation.
authors.affiliation: FOM Institute for Atomic and Molecular Physics, Kruislaan 407, 1098 SJ Amsterdam, The Netherlands.
authors.forename: L C
authors.initials: LC
authors.lastname: Dinu
authors.forename: H G
authors.initials: HG
authors.lastname: Muller
authors.forename: S
authors.initials: S
authors.lastname: Kazamias
authors.forename: G
authors.initials: G
authors.lastname: Mullot
authors.forename: F
authors.initials: F
authors.lastname: Augé
authors.forename: Ph
authors.initials: P
authors.lastname: Balcou
authors.forename: P M
authors.initials: PM
authors.lastname: Paul
authors.forename: M
authors.initials: M
authors.lastname: Kovacev
authors.forename: P
authors.initials: P
authors.lastname: Breger
authors.forename: P
authors.initials: P
authors.lastname: Agostini