title: Self-Probing Spectroscopy of the SF6 Molecule: A Study of the Spectral Amplitude and Phase of the High Harmonic Emission.
abstract: We present characterizations of the attosecond pulse train produced in the high harmonic generation (HHG) from SF6 molecules irradiated by a strong pulsed laser field at 800 nm. At harmonic order 17, we observe a minimum in the amplitude of the emitted spectrum and a corresponding distortion in the phase. Our experimental results are compared to two models: a multicenter interference model focused on the effect of the structure of the SF6 molecule in HHG and a model focused on the interferences between multiple ionization channels in HHG. We find that the experimental results agree very well with the multiple ionization channels model, illustrating that HHG in molecules can be very complex and that it provides insights of the intramolecular electron dynamics during the interaction process.
authors: †Laboratoire Interactions, Dynamique et Lasers, IRAMIS, CEA-Saclay, 91191 Gif-sur-Yvette, France.|§Department of Physics, Lund University, P.O. Box 118, SE-22100 Lund, Sweden.
authors: Bastian
authors: B
authors: Manschwetus
authors: †Laboratoire Interactions, Dynamique et Lasers, IRAMIS, CEA-Saclay, 91191 Gif-sur-Yvette, France.|∥Laboratorium für Physikalische Chemie, ETH Zürich, Wolfgang-Pauli-Strasse 10, 8093 Zürich, Switzerland.
authors: Nan
authors: N
authors: Lin
authors: †Laboratoire Interactions, Dynamique et Lasers, IRAMIS, CEA-Saclay, 91191 Gif-sur-Yvette, France.|⊥Helmholtz-Institute-Jena, Fröbelstieg 3, 07743 Jena, Germany.
authors: Jan
authors: J
authors: Rothhardt
authors: ‡Laboratoire de Chimie Physique-Matière et Rayonnement, UMR 7614, UPMC Univ. Paris 06, 11 Rue Pierre et Marie Curie, 75231 Paris Cedex 05, France.
authors: Roland
authors: R
authors: Guichard
authors: †Laboratoire Interactions, Dynamique et Lasers, IRAMIS, CEA-Saclay, 91191 Gif-sur-Yvette, France.
authors: Thierry
authors: T
authors: Auguste
authors: †Laboratoire Interactions, Dynamique et Lasers, IRAMIS, CEA-Saclay, 91191 Gif-sur-Yvette, France.|#Department of Physics, The Ohio State University, Columbus, Ohio 43210, United States.
authors: Antoine
authors: A
authors: Camper
authors: †Laboratoire Interactions, Dynamique et Lasers, IRAMIS, CEA-Saclay, 91191 Gif-sur-Yvette, France.
authors: Pierre
authors: P
authors: Breger
authors: ‡Laboratoire de Chimie Physique-Matière et Rayonnement, UMR 7614, UPMC Univ. Paris 06, 11 Rue Pierre et Marie Curie, 75231 Paris Cedex 05, France.
authors: Jérémie
authors: J
authors: Caillat
authors: †Laboratoire Interactions, Dynamique et Lasers, IRAMIS, CEA-Saclay, 91191 Gif-sur-Yvette, France.
authors: Marie
authors: M
authors: Géléoc
authors: †Laboratoire Interactions, Dynamique et Lasers, IRAMIS, CEA-Saclay, 91191 Gif-sur-Yvette, France.
authors: Thierry
authors: T
authors: Ruchon
authors: ‡Laboratoire de Chimie Physique-Matière et Rayonnement, UMR 7614, UPMC Univ. Paris 06, 11 Rue Pierre et Marie Curie, 75231 Paris Cedex 05, France.
authors: Richard
authors: R
authors: Taïeb
authors: †Laboratoire Interactions, Dynamique et Lasers, IRAMIS, CEA-Saclay, 91191 Gif-sur-Yvette, France.
authors: Bertrand
authors: B
authors: Carré
authors: †Laboratoire Interactions, Dynamique et Lasers, IRAMIS, CEA-Saclay, 91191 Gif-sur-Yvette, France.
authors: Pascal
authors: P
authors: Salières