Digital holography with self-imaging by a two-step phase element

Authors

  • Agnieszka Siemion Warsaw University of Technology, Faculty of Physics
  • Izabela Ducin Warsaw University of Technology, Faculty of Physics
  • Karol Kakarenko Warsaw University of Technology, Faculty of Physics
  • Michał Makowski Warsaw University of Technology, Faculty of Physics
  • Andrzej Siemion Warsaw University of Technology, Faculty of Physics
  • Jarosław Suszek Warsaw University of Technology, Faculty of Physics
  • Maciej Sypek Warsaw University of Technology, Faculty of Physics
  • Dariusz Wojnowski Warsaw University of Technology, Faculty of Physics
  • Andrzej Kołodziejczyk Warsaw University of Technology, Faculty of Physics

DOI:

https://doi.org/10.4302/photon.%20lett.%20pl.v2i2.125

Abstract

The paper presents a method of recording digital holograms in a single shot by illuminating the photosensitive matrix with an especially structured reference beam formed by the Talbot effect from a periodical binary-phase diffractive element. This beam projects a 2D array of rectangular areas with different phase shifts. By interfering this beam with an object beam we achieve two phase shifted holograms which are then numerically reconstructed with a classical phase-shifting technique. The main advantage over a 4-step phase element is the easiness of fabrication and its alignment against the photosensitive matrix of a digital camera.

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References
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Published

2010-06-29

How to Cite

[1]
A. Siemion, “Digital holography with self-imaging by a two-step phase element”, Photonics Lett. Pol., vol. 2, no. 2, pp. pp. 91–93, Jun. 2010.

Issue

Vol. 2 No. 2 (2010)

Section

Articles

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