title: Quadriwave lateral shearing interferometry in an achromatic and continuously self-imaging regime for future x-ray phase imaging.
abstract: We present in this Letter a type of quadriwave lateral shearing interferometer for x-ray phase imaging. This device is based on a phase chessboard, and we take advantage of the large spectrum of the source to produce interferograms with a propagation-invariant contrast. Such a grating has been created for hard x-ray interferometry and experimentally tested on a synchrotron beamline at Soleil.
authors.affiliation: ONERA, The French Aerospace Lab, Chemin de la Huniere, 91761 Palaiseau, France. julien.rizzi@onera.fr
authors.forename: Julien
authors.initials: J
authors.lastname: Rizzi
authors.forename: Timm
authors.initials: T
authors.lastname: Weitkamp
authors.forename: Nicolas
authors.initials: N
authors.lastname: Guérineau
authors.forename: Mourad
authors.initials: M
authors.lastname: Idir
authors.forename: Pascal
authors.initials: P
authors.lastname: Mercère
authors.forename: Guillaume
authors.initials: G
authors.lastname: Druart
authors.forename: Grégory
authors.initials: G
authors.lastname: Vincent
authors.forename: Paulo
authors.initials: P
authors.lastname: da Silva
authors.forename: Jérôme
authors.initials: J
authors.lastname: Primot