title: Spontaneous emergence of pulses with constant carrier-envelope phase in femtosecond filamentation.
abstract: We study the possibility to obtain high-intensity pulses that maintain a constant Carrier Envelope Phase (CEP) during propagation in dispersive media, i.e. pulses such that the carrier-wave offset with respect to the main intensity peak remains fixed. Our numerical experiments strongly suggest that pulse splitting and X-wave formation within femtosecond laser pulse filamentation leads to the formation of "constant-CEP" within well-defined regions inside the filament. We study the creation of "constant- CEP" pulses in both gasseous and condensed media showing that this is a generic feature of filaments.
authors.affiliation: CNISM and Department of Physics and Mathematics, University of Insubria, Via Valleggio 11, IT-22100 Como, Italy. daniele.faccio@uninsubria.it
authors.forename: D
authors.initials: D
authors.lastname: Faccio
authors.forename: A
authors.initials: A
authors.lastname: Lotti
authors.forename: M
authors.initials: M
authors.lastname: Kolesik
authors.forename: J V
authors.initials: JV
authors.lastname: Moloney
authors.forename: S
authors.initials: S
authors.lastname: Tzortzakis
authors.forename: A
authors.initials: A
authors.lastname: Couairon
authors.forename: P
authors.initials: P
authors.lastname: Di Trapani
mesh_terms: D003198:Computer Simulation; D017076:Computer-Aided Design; D007834:Lasers; D008027:Light; D008962:Models, Theoretical; D012542:Scattering, Radiation; D013685:Telecommunications