Design and characterization of extreme-ultraviolet broadband mirrors for attosecond science.
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.
Morlens
Anne-Sophie
AS
Laboratoire d'Optique Apliquée, Ecole Nationale Supérieure des Techniques--Ecole Polytechnique--CNRS UMR, Palaiseau, France. ann-sophie.morlens@ensta.fr
López-Martens
Rodrigo
R
Boyko
Olga
O
Zeitoun
Philippe
P
Balcou
Philippe
P
Varjú
Katalin
K
Gustafsson
Erik
E
Remetter
Thomas
T
L'huillier
Anne
A
Kazamias
Sophie
S
Gautier
Julien
J
Delmotte
Franck
F
Ravet
Marie-Françoise
MF