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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 6 — Mar. 25, 2013
  • pp: 7726–7733

Resolution enhancement in digital holography by self-extrapolation of holograms

Tatiana Latychevskaia and Hans-Werner Fink  »View Author Affiliations

Optics Express, Vol. 21, Issue 6, pp. 7726-7733 (2013)

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It is generally believed that the resolution in digital holography is limited by the size of the captured holographic record. Here, we present a method to circumvent this limit by self-extrapolating experimental holograms beyond the area that is actually captured. This is done by first padding the surroundings of the hologram and then conducting an iterative reconstruction procedure. The wavefront beyond the experimentally detected area is thus retrieved and the hologram reconstruction shows enhanced resolution. To demonstrate the power of this concept, we apply it to simulated as well as experimental holograms.

© 2013 OSA

OCIS Codes
(100.5070) Image processing : Phase retrieval
(350.5730) Other areas of optics : Resolution
(090.1995) Holography : Digital holography

ToC Category:

Original Manuscript: February 5, 2013
Revised Manuscript: March 10, 2013
Manuscript Accepted: March 12, 2013
Published: March 21, 2013

Tatiana Latychevskaia and Hans-Werner Fink, "Resolution enhancement in digital holography by self-extrapolation of holograms," Opt. Express 21, 7726-7733 (2013)

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