title: Broadband extreme ultraviolet multilayer mirror for supercontinuum light at a photon energy of 35-65 eV.
abstract: We have developed a broadband multilayer mirror for photon energies between 35 and 65 eV. This extreme ultraviolet (EUV) mirror has an almost flat reflectivity profile at normal incidence, and the average reflectivity is 8%. The bandwidth of this mirror is 30 eV centered around 50 eV, 1.5 times broader than conventional multilayer mirrors in this energy region. This new mirror can be used in a variety of applications using supercontinuum EUV light sources including attosecond metrology.
authors.affiliation: Graduate School of Science and Engineering, Saitama University, 255 Okubo, Saitama-shi,Saitama 338-8570, Japan.
authors.forename: Masatoshi
authors.initials: M
authors.lastname: Hatayama
authors.forename: Hisataka
authors.initials: H
authors.lastname: Takenaka
authors.forename: Eric M
authors.initials: EM
authors.lastname: Gullikson
authors.forename: Akira
authors.initials: A
authors.lastname: Suda
authors.forename: Katsumi
authors.initials: K
authors.lastname: Midorikawa