title: Active-grating monochromator for the spectral selection of ultrashort pulses.
abstract: Active gratings have been used to realize a grazing-incidence double-grating monochromator for the spectral selection of ultrashort pulses while preserving the temporal duration by compensating for the pulse-front tilt. The active grating consists of a bimorph deformable mirror on the top of which a diffraction grating with laminar profile is realized by UV lithography. The time-delay compensated configuration has been tested with ultrashort pulses at 800 nm. The feasibility of this configuration for the extreme-ultraviolet spectral region has been demonstrated by ray tracing studies.
authors.affiliation: National Council for Research of Italy, Institute of Photonics and Nanotechnologies, Padova, Italy. frassett@dei.unipd.it
authors.forename: Fabio
authors.initials: F
authors.lastname: Frassetto
authors.forename: Stefano
authors.initials: S
authors.lastname: Bonora
authors.forename: Caterina
authors.initials: C
authors.lastname: Vozzi
authors.forename: Salvatore
authors.initials: S
authors.lastname: Stagira
authors.forename: Erika
authors.initials: E
authors.lastname: Zanchetta
authors.forename: Gioia
authors.initials: G
authors.lastname: Della Giustina
authors.forename: Giovanna
authors.initials: G
authors.lastname: Brusatin
authors.forename: Luca
authors.initials: L
authors.lastname: Poletto