title: Towards multi-order hard X-ray imaging with multilayer zone plates.
abstract: This article describes holographic imaging experiments using a hard X-ray multilayer zone plate (MZP) with an outermost zone width of 10 nm at a photon energy of 18 keV. An order-sorting aperture (OSA) is omitted and emulated during data analysis by a 'software OSA'. Scanning transmission X-ray microscopy usually carried out in the focal plane is generalized to the holographic regime. The MZP focus is characterized by a three-plane phase-retrieval algorithm to an FWHM of 10 nm.
authors.affiliation: Institut für Röntgenphysik, Georg-August-Universität Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany.
authors.forename: Markus
authors.initials: M
authors.lastname: Osterhoff
authors.affiliation: Institut für Materialphysik, Georg-August-Universität Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany.
authors.forename: Christian
authors.initials: C
authors.lastname: Eberl
authors.affiliation: Institut für Materialphysik, Georg-August-Universität Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany.
authors.forename: Florian
authors.initials: F
authors.lastname: Döring
authors.affiliation: Institut für Röntgenphysik, Georg-August-Universität Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany.
authors.forename: Robin N
authors.initials: RN
authors.lastname: Wilke
authors.affiliation: Institut für Röntgenphysik, Georg-August-Universität Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany.
authors.forename: Jesper
authors.initials: J
authors.lastname: Wallentin
authors.affiliation: Institut für Materialphysik, Georg-August-Universität Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany.
authors.forename: Hans-Ulrich
authors.initials: HU
authors.lastname: Krebs
authors.affiliation: DESY Photon Science, Notkestrasse 85, 22607 Hamburg, Germany.
authors.forename: Michael
authors.initials: M
authors.lastname: Sprung
authors.affiliation: Institut für Röntgenphysik, Georg-August-Universität Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany.
authors.forename: Tim
authors.initials: T
authors.lastname: Salditt
keywords: X-ray imaging; multilayer zone plates