Enhanced deterministic phase retrieval using a partially developed speckle field

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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DOI

  • Author: Almoro, Percival F.

    National Institute of Physics, University of the Philippines, Philippines

  • Author: Waller, Laura

    Department of Electrical Engineering, Princeton University, United States

  • Author: Agour, Mostafa

    Bremer Institut für Angewandte Strahltechnik, Germany

  • Author: Falldorf, Claas

    Bremer Institut für Angewandte Strahltechnik, Germany

  • Author: Pedrini, Giancarlo

    Universität Stuttgart, Germany

  • Author: Osten, Wolfgang

    Universität Stuttgart, Germany

  • Author: Hanson, Steen Grüner

    Optical Sensor Technology, Department of Photonics Engineering, Technical University of Denmark, Frederiksborgvej 399, 4000, Roskilde, Denmark

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A technique for enhanced deterministic phase retrieval using a partially developed speckle field (PDSF) and a spatial light modulator (SLM) is demonstrated experimentally. A smooth test wavefront impinges on a phase diffuser, forming a PDSF that is directed to a 4f setup. Two defocused speckle intensity measurements are recorded at the output plane corresponding to axially-propagated representations of the PDSF in the input plane. The speckle intensity measurements are then used in a conventional transport of intensity equation (TIE) to reconstruct directly the test wavefront. The PDSF in our technique increases the dynamic range of the axial intensity derivative for smooth phase objects, resulting in a more robust solution to the TIE. The SLM setup enables a fast and accurate recording of speckle intensity. Experimental results are in good agreement with those obtained using the iterative phase retrieval and digital holographic methods of wavefront reconstruction.
Original languageEnglish
JournalOptics Letters
Publication date2012
Volume37
Issue11
Pages2088-2090
ISSN0146-9592
DOIs
StatePublished

Bibliographical note

This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/ol/abstract.cfm?uri=ol-37-11-2088. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

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