Divide and update: towards single-shot object and probe retrieval for near-field holography
2017-09-04 | journal article; research paper. A publication with affiliation to the University of Göttingen.
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- Authors
- Hagemann, Johannes; Salditt, Tim
- Abstract
- We present a phase reconstruction scheme for X-ray near-field holographic imaging based on a separability constraint for probe and object. In order to achieve this, we have devised an algorithm which requires only two measurements - with and without an object in the beam. This scheme is advantageous if the standard flat-field correction fails and a full ptychographic dataset can not be acquired, since either object or probe are dynamic. The scheme is validated by numerical simulations and by a proof-of-concept experiment using highly focused undulator radiation of the beamline ID16a of the European Synchrotron Radiation Facility (ESRF).
- Issue Date
- 4-September-2017
- Journal
- Optics Express
- Organization
- Fakultät für Physik ; Institut für Röntgenphysik
- Working Group
- RG Salditt (Structure of Biomolecular Assemblies and X-Ray Physics)
- ISSN
- 1094-4087
- Language
- English
- Subject(s)
- x-ray imaging
- Sponsor
- Open-Access-Publikationsfonds 2017