title: Active Plasma Lensing for Relativistic Laser-Plasma-Accelerated Electron Beams.
abstract: Compact, tunable, radially symmetric focusing of electrons is critical to laser-plasma accelerator (LPA) applications. Experiments are presented demonstrating the use of a discharge-capillary active plasma lens to focus 100-MeV-level LPA beams. The lens can provide tunable field gradients in excess of 3000 T/m, enabling cm-scale focal lengths for GeV-level beam energies and allowing LPA-based electron beams and light sources to maintain their compact footprint. For a range of lens strengths, excellent agreement with simulation was obtained.
authors.affiliation: Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, USA.
authors.forename: J
authors.initials: J
authors.lastname: van Tilborg
authors.affiliation: Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, USA.
authors.forename: S
authors.initials: S
authors.lastname: Steinke
authors.affiliation: Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, USA.
authors.forename: C G R
authors.initials: CG
authors.lastname: Geddes
authors.affiliation: Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, USA.
authors.forename: N H
authors.initials: NH
authors.lastname: Matlis
authors.affiliation: Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, USA.|Department of Physics, University of California, Berkeley, California 94720, USA.
authors.forename: B H
authors.initials: BH
authors.lastname: Shaw
authors.affiliation: Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, USA.
authors.forename: A J
authors.initials: AJ
authors.lastname: Gonsalves
authors.affiliation: Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, USA.
authors.forename: J V
authors.initials: JV
authors.lastname: Huijts
authors.affiliation: Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, USA.
authors.forename: K
authors.initials: K
authors.lastname: Nakamura
authors.affiliation: Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, USA.
authors.forename: J
authors.initials: J
authors.lastname: Daniels
authors.affiliation: Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, USA.
authors.forename: C B
authors.initials: CB
authors.lastname: Schroeder
authors.affiliation: Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, USA.
authors.forename: C
authors.initials: C
authors.lastname: Benedetti
authors.affiliation: Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, USA.
authors.forename: E
authors.initials: E
authors.lastname: Esarey
authors.affiliation: Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, USA.
authors.forename: S S
authors.initials: SS
authors.lastname: Bulanov
authors.affiliation: Institute of Theoretical and Experimental Physics, Moscow 117218, Russia.
authors.forename: N A
authors.initials: NA
authors.lastname: Bobrova
authors.affiliation: Keldysh Institute of Applied Mathematics, Moscow 125047, Russia.
authors.forename: P V
authors.initials: PV
authors.lastname: Sasorov
authors.affiliation: Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, USA.|Department of Physics, University of California, Berkeley, California 94720, USA.
authors.forename: W P
authors.initials: WP
authors.lastname: Leemans