title: Probing time-dependent molecular dipoles on the attosecond time scale.
abstract: Photoinduced molecular processes start with the interaction of the instantaneous electric field of the incident light with the electronic degrees of freedom. This early attosecond electronic motion impacts the fate of the photoinduced reactions. We report the first observation of attosecond time scale electron dynamics in a series of small- and medium-sized neutral molecules (N(2), CO(2), and C(2)H(4)), monitoring time-dependent variations of the parent molecular ion yield in the ionization by an attosecond pulse, and thereby probing the time-dependent dipole induced by a moderately strong near-infrared laser field. This approach can be generalized to other molecular species and may be regarded as a first example of molecular attosecond Stark spectroscopy.
authors.affiliation: Max-Born Institut, Max-Born Strasse 2A, 12489 Berlin, Germany.
authors.forename: Ch
authors.initials: Ch
authors.lastname: Neidel
authors.forename: J
authors.initials: J
authors.lastname: Klei
authors.forename: C-H
authors.initials: CH
authors.lastname: Yang
authors.forename: A
authors.initials: A
authors.lastname: Rouzée
authors.forename: M J J
authors.initials: MJ
authors.lastname: Vrakking
authors.forename: K
authors.initials: K
authors.lastname: Klünder
authors.forename: M
authors.initials: M
authors.lastname: Miranda
authors.forename: C L
authors.initials: CL
authors.lastname: Arnold
authors.forename: T
authors.initials: T
authors.lastname: Fordell
authors.forename: A
authors.initials: A
authors.lastname: L'Huillier
authors.forename: M
authors.initials: M
authors.lastname: Gisselbrecht
authors.forename: P
authors.initials: P
authors.lastname: Johnsson
authors.forename: M P
authors.initials: MP
authors.lastname: Dinh
authors.forename: E
authors.initials: E
authors.lastname: Suraud
authors.forename: P-G
authors.initials: PG
authors.lastname: Reinhard
authors.forename: V
authors.initials: V
authors.lastname: Despré
authors.forename: M A L
authors.initials: MA
authors.lastname: Marques
authors.forename: F
authors.initials: F
authors.lastname: Lépine