title: Self-guided propagation of ultrashort laser pulses in the anomalous dispersion region of transparent solids: a new regime of filamentation.
abstract: We report measurements concerning the propagation of femtosecond laser pulses in fused silica with a wavelength at 1.9 μm falling in the negative group velocity dispersion region. Under sub-GW excitation power, stable filaments are observed over several cm showing the emergence of nonspreading pulses both in space and time. At higher excitation powers, one observes first multiple pulse splitting followed by the emergence of the quasispatiotemporal solitary filament. These results are well reproduced by numerical simulations.
authors.affiliation: Laboratoire d'Optique Appliquée, ENSTA ParisTech, Ecole Polytechnique, CNRS, F-91761 Palaiseau, France.
authors.forename: M
authors.initials: M
authors.lastname: Durand
authors.affiliation: Laboratoire d'Optique Appliquée, ENSTA ParisTech, Ecole Polytechnique, CNRS, F-91761 Palaiseau, France.
authors.forename: A
authors.initials: A
authors.lastname: Jarnac
authors.affiliation: Laboratoire d'Optique Appliquée, ENSTA ParisTech, Ecole Polytechnique, CNRS, F-91761 Palaiseau, France.
authors.forename: A
authors.initials: A
authors.lastname: Houard
authors.affiliation: Laboratoire d'Optique Appliquée, ENSTA ParisTech, Ecole Polytechnique, CNRS, F-91761 Palaiseau, France.
authors.forename: Y
authors.initials: Y
authors.lastname: Liu
authors.affiliation: FASTLITE, Centre Scientifique d'Orsay, Plateau du Moulon, F-91401 Orsay, France.
authors.forename: S
authors.initials: S
authors.lastname: Grabielle
authors.affiliation: FASTLITE, Centre Scientifique d'Orsay, Plateau du Moulon, F-91401 Orsay, France.
authors.forename: N
authors.initials: N
authors.lastname: Forget
authors.affiliation: Onera-The French Aerospace Lab, BP 80100, F-91123 Palaiseau cedex, France.
authors.forename: A
authors.initials: A
authors.lastname: Durécu
authors.affiliation: Centre de Physique Théorique, CNRS, Ecole Polytechnique, F-91128 Palaiseau, France.
authors.forename: A
authors.initials: A
authors.lastname: Couairon
authors.affiliation: Laboratoire d'Optique Appliquée, ENSTA ParisTech, Ecole Polytechnique, CNRS, F-91761 Palaiseau, France.
authors.forename: A
authors.initials: A
authors.lastname: Mysyrowicz