title: Terahertz pulse emission optimization from tailored femtosecond laser pulse filamentation in air.
abstract: We study the generation of intense terahertz pulses produced by two-color laser pulse filamentation in air. We tailor the filamentation process and the produced plasma strings and study how the generated terahertz field is modified. An important terahertz pulse shortening is found for plasma strings with uniform electron density.
authors.affiliation: Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, Heraklion, Greece.
authors.forename: J-M
authors.initials: JM
authors.lastname: Manceau
authors.forename: A
authors.initials: A
authors.lastname: Averchi
authors.forename: F
authors.initials: F
authors.lastname: Bonaretti
authors.forename: D
authors.initials: D
authors.lastname: Faccio
authors.forename: P
authors.initials: P
authors.lastname: Di Trapani
authors.forename: A
authors.initials: A
authors.lastname: Couairon
authors.forename: S
authors.initials: S
authors.lastname: Tzortzakis