title: Nonparaxial analysis of continuous self-imaging gratings in oblique illumination.
abstract: Tolerance in angles of continuously self-imaging gratings (CSIGs) is explored. The degradation in angle of the shape of the point-spread function is theoretically investigated and illustrated by simulations and experiments. The formalism presented is inspired by the one used for classical lenses and can be easily generalized to diffraction gratings. It turns out that well-designed CSIGs could be used for scanning optical systems requiring a large field of view.
authors.affiliation: Office National d'Etudes et de Recherches Aérospatiales, Chemin de Hunière, 91761 Palaiseau Cedex, France. guillaume.druart@onera.fr
authors.forename: Guillaume
authors.initials: G
authors.lastname: Druart
authors.forename: Nicolas
authors.initials: N
authors.lastname: Guérineau
authors.forename: Riad
authors.initials: R
authors.lastname: Haïdar
authors.forename: Jérôme
authors.initials: J
authors.lastname: Primot
authors.forename: Pierre
authors.initials: P
authors.lastname: Chavel
authors.forename: Jean
authors.initials: J
authors.lastname: Taboury