title: Competition between phase-matching and stationarity in Kerr-driven optical pulse filamentation.
abstract: Experiments show that the spatiotemporal spectral broadening of an intense pump pulse in a Kerr medium in the presence of strong higher-order dispersion does not lead to symmetric profiles, and hence cannot be interpreted as standard modulational instability of a plane and monochromatic nonlinear eigenmode. The highly asymmetric features of the generated (K perpendicular,Omega) spectrum are due to odd-order dispersion terms and are interpreted in terms of spontaneous formation of stationary conical waves.
authors.affiliation: CNISM and Department of Physics and Mathematics, University of Insubria, Via Valleggio 11, 22100 Como, Italy. daniele.faccio@uninsubria.it
authors.forename: Daniele
authors.initials: D
authors.lastname: Faccio
authors.forename: Alessandro
authors.initials: A
authors.lastname: Averchi
authors.forename: Arnaud
authors.initials: A
authors.lastname: Couairon
authors.forename: Audrius
authors.initials: A
authors.lastname: Dubietis
authors.forename: Rimtautas
authors.initials: R
authors.lastname: Piskarskas
authors.forename: Aidas
authors.initials: A
authors.lastname: Matijosius
authors.forename: Francesca
authors.initials: F
authors.lastname: Bragheri
authors.forename: Miguel A
authors.initials: MA
authors.lastname: Porras
authors.forename: Algis
authors.initials: A
authors.lastname: Piskarskas
authors.forename: Paolo
authors.initials: P
authors.lastname: Di Trapani