title: All-optical steering of laser-wakefield-accelerated electron beams.
abstract: We investigate the influence of a tilted laser-pulse-intensity front on laser-wakefield acceleration. Such asymmetric light pulses may be exploited to obtain control over the electron-bunch-pointing direction and in our case allowed for reproducible electron-beam steering in an all-optical way within an 8 mrad opening window with respect to the initial laser axis. We also discovered evidence of collective electron-betatron oscillations due to off-axis electron injection into the wakefield induced by a pulse-front tilt. These findings are supported by 3D particle-in-cell simulations.
authors.affiliation: Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, 85748 Garching, Germany.
authors.forename: A
authors.initials: A
authors.lastname: Popp
authors.forename: J
authors.initials: J
authors.lastname: Vieira
authors.forename: J
authors.initials: J
authors.lastname: Osterhoff
authors.forename: Zs
authors.initials: Z
authors.lastname: Major
authors.forename: R
authors.initials: R
authors.lastname: Hörlein
authors.forename: M
authors.initials: M
authors.lastname: Fuchs
authors.forename: R
authors.initials: R
authors.lastname: Weingartner
authors.forename: T P
authors.initials: TP
authors.lastname: Rowlands-Rees
authors.forename: M
authors.initials: M
authors.lastname: Marti
authors.forename: R A
authors.initials: RA
authors.lastname: Fonseca
authors.forename: S F
authors.initials: SF
authors.lastname: Martins
authors.forename: L O
authors.initials: LO
authors.lastname: Silva
authors.forename: S M
authors.initials: SM
authors.lastname: Hooker
authors.forename: F
authors.initials: F
authors.lastname: Krausz
authors.forename: F
authors.initials: F
authors.lastname: Grüner
authors.forename: S
authors.initials: S
authors.lastname: Karsch