title: Dual-color co-filamentation in Argon.
abstract: We investigate both experimentally and theoretically the mechanisms driving the co-filamentation of two ultrashort laser pulses at 800 and 400 nm in Argon. The cross-Kerr lens and cross-phase modulation between the two filaments of different colors bridging both the continuum spectra and the plasma channels induced by the individual pulses. This dual-color filamentation also results in the simultaneous generation of two few-cycle pulses at both 800 and 400 nm, providing a potential way to generate attosecond pulses.
authors.affiliation: Université de Genève, GAP-Biophotonics, Geneva 4, Switzerland. pierre.bejot@physics.unige.ch
authors.forename: Pierre
authors.initials: P
authors.lastname: Béjot
authors.forename: Jérôme
authors.initials: J
authors.lastname: Kasparian
authors.forename: Jean-Pierre
authors.initials: JP
authors.lastname: Wolf
mesh_terms: D001128:Argon / Q000737:chemistry* / Q000528:radiation effects*; D003116:Color; D003198:Computer Simulation; D007834:Lasers; D008956:Models, Chemical
chemical_list: D001128:Argon