title: Fractional Talbot imaging of phase gratings with hard x rays.
abstract: Fractional Talbot images of optical gratings acting as periodic phase objects have been obtained by use of x rays of 0.069-nm wavelength from a third-generation synchrotron radiation source. Quantitative evaluation of the data obtained as a function of defocusing distance provides information on the lateral coherence of the beam as well as on the phase modulation in the object.
authors.forename: P
authors.initials: P
authors.lastname: Cloetens
authors.forename: J P
authors.initials: JP
authors.lastname: Guigay
authors.forename: C
authors.initials: C
authors.lastname: De Martino
authors.forename: J
authors.initials: J
authors.lastname: Baruchel
authors.forename: M
authors.initials: M
authors.lastname: Schlenker