title: Production of a keV x-ray beam from synchrotron radiation in relativistic laser-plasma interaction.
abstract: We demonstrate that a beam of x-ray radiation can be generated by simply focusing a single high-intensity laser pulse into a gas jet. A millimeter-scale laser-produced plasma creates, accelerates, and wiggles an ultrashort and relativistic electron bunch. As they propagate in the ion channel produced in the wake of the laser pulse, the accelerated electrons undergo betatron oscillations, generating a femtosecond pulse of synchrotron radiation, which has keV energy and lies within a narrow (50 mrad) cone angle.
authors.affiliation: Laboratoire d'Optique Appliquée, ENSTA, CNRS UMR7639, Ecole Polytechnique, Chemin de la Hunière, 91761 Palaiseau, France.
authors.forename: Antoine
authors.initials: A
authors.lastname: Rousse
authors.forename: Kim Ta
authors.initials: KT
authors.lastname: Phuoc
authors.forename: Rahul
authors.initials: R
authors.lastname: Shah
authors.forename: Alexander
authors.initials: A
authors.lastname: Pukhov
authors.forename: Eric
authors.initials: E
authors.lastname: Lefebvre
authors.forename: Victor
authors.initials: V
authors.lastname: Malka
authors.forename: Sergey
authors.initials: S
authors.lastname: Kiselev
authors.forename: Fréderic
authors.initials: F
authors.lastname: Burgy
authors.forename: Jean-Philippe
authors.initials: JP
authors.lastname: Rousseau
authors.forename: Donald
authors.initials: D
authors.lastname: Umstadter
authors.forename: Daniéle
authors.initials: D
authors.lastname: Hulin