title: Digital holography from shadowgraphic phase estimates.
abstract: We show experimentally that the recently proposed iterative shadowgraphic method can be applied to in-line digital holography, provided a suitable regularization step is introduced. We show that the method correctly solves the "twin-image" problem using just two samples of the intensity field scattered by a phase object. Field retrieval accuracy is significantly improved when compared to a reconstruction obtained with the defocusing variation algorithms.
authors.affiliation: Institute of Applied Physics, Friedrich-Schiller-Universität, Abbe Center of Photonics, Jena, Germany.
authors.forename: Falk
authors.initials: F
authors.lastname: Eilenberger
authors.forename: Stefano
authors.initials: S
authors.lastname: Minardi
authors.forename: Dimitris
authors.initials: D
authors.lastname: Pliakis
authors.forename: Thomas
authors.initials: T
authors.lastname: Pertsch