Digital holography from shadowgraphic phase estimates
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Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization
Published on: July 5, 2016
Falk Eilenberger1, Stefano Minardi, Dimitris Pliakis
1Institute of Applied Physics, Friedrich-Schiller-Universität, Abbe Center of Photonics, Jena, Germany.
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.

