title: Design and characterization of extreme-ultraviolet broadband mirrors for attosecond science.
abstract: A novel multilayer mirror was designed and fabricated based on a recently developed three-material technology aimed both at reaching reflectivities of about 20% and at controlling dispersion over a bandwidth covering photon energies between 35 and 50 eV. The spectral phase upon reflection was retrieved by measuring interferences in a two-color ionization process using high-order harmonics produced from a titanium: sapphire laser. We demonstrate the feasibility of designing and characterizing phase-controlled broadband optics in the extreme-ultraviolet domain, which should facilitate the manipulation of attosecond pulses for applications.
authors.affiliation: Laboratoire d'Optique Apliquée, Ecole Nationale Supérieure des Techniques--Ecole Polytechnique--CNRS UMR, Palaiseau, France. ann-sophie.morlens@ensta.fr
authors.forename: Anne-Sophie
authors.initials: AS
authors.lastname: Morlens
authors.forename: Rodrigo
authors.initials: R
authors.lastname: López-Martens
authors.forename: Olga
authors.initials: O
authors.lastname: Boyko
authors.forename: Philippe
authors.initials: P
authors.lastname: Zeitoun
authors.forename: Philippe
authors.initials: P
authors.lastname: Balcou
authors.forename: Katalin
authors.initials: K
authors.lastname: Varjú
authors.forename: Erik
authors.initials: E
authors.lastname: Gustafsson
authors.forename: Thomas
authors.initials: T
authors.lastname: Remetter
authors.forename: Anne
authors.initials: A
authors.lastname: L'huillier
authors.forename: Sophie
authors.initials: S
authors.lastname: Kazamias
authors.forename: Julien
authors.initials: J
authors.lastname: Gautier
authors.forename: Franck
authors.initials: F
authors.lastname: Delmotte
authors.forename: Marie-Françoise
authors.initials: MF
authors.lastname: Ravet