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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 34, Iss. 23 — Dec. 1, 2009
  • pp: 3610–3612

Twin removal in digital holography using diffuse illumination

David S. Monaghan, Damien P. Kelly, Nitesh Pandey, and Bryan M. Hennelly  »View Author Affiliations

Optics Letters, Vol. 34, Issue 23, pp. 3610-3612 (2009)

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A method to numerically remove the twin image for inline digital holography, using multiple digital holograms, is discussed. Each individual hologram is recorded by using a statistically independent speckle field to illuminate the object. If the holograms are recorded in this manner and then numerically reconstructed, the twin image appears as a different speckle pattern in each of the reconstructions. By performing speckle-reduction techniques the presence of the twin image can be greatly reduced. A theoretical model is developed, and experimental results are presented that validate this approach. We show experimentally that the dc object intensity term can also be removed by using this technique.

© 2009 Optical Society of America

OCIS Codes
(000.4430) General : Numerical approximation and analysis
(090.1995) Holography : Digital holography

ToC Category:

Original Manuscript: June 10, 2009
Revised Manuscript: October 15, 2009
Manuscript Accepted: October 23, 2009
Published: November 18, 2009

David S. Monaghan, Damien P. Kelly, Nitesh Pandey, and Bryan M. Hennelly, "Twin removal in digital holography using diffuse illumination," Opt. Lett. 34, 3610-3612 (2009)

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