Phase retrieval with an LCoS display: characterization and application

  • C. Kohler
  • W. Osten
  • F. Zhang

We recently reported about a new phase retrieval method that employs a movable phase plate as modulator [1]. In this paper, as a practical demonstration we first apply this method for the characterization of a reflective Liquid Crystal on Silicon Display (LCoS). In turn, we show how to use the calibrated LCoS display as the modulator required in this method. Using a display as the modulation device offers several advantages over a phase plate: flexibility in selecting the optimal phase distribution for objects and easy adaptation to different wavelengths. The most important advantage is that the disposal of moving parts makes this method very suitable for the use with instantaneous fields. The measurement speed will be only limited by the switching time of the display and the acquisition time of camera.


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We thank the Deutsche Forschungsgemeinschaft (DFG) for supporting this research under the grant number OS-111/23-1.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • C. Kohler
    • 2
  • W. Osten
    • 1
  • F. Zhang
    • 3
  1. 1.Institut für Technische OptikStuttgartGermany
  2. 2.LABMETRO: Laboratório de Metrologia e Automatizaç ãoUniversidade Federal de Santa CatarinaFlorianópolisBrazil
  3. 3.Kroto Research InstituteUniversity of Sheffield, Broad Lane S3SheffieldUK

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