Twin removal in digital holography using diffuse illumination
Optics Letters, Vol. 34, Issue 23, pp. 3610-3612 (2009)
http://dx.doi.org/10.1364/OL.34.003610
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Abstract
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:
Holography
History
Original Manuscript: June 10, 2009
Revised Manuscript: October 15, 2009
Manuscript Accepted: October 23, 2009
Published: November 18, 2009
Citation
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)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-23-3610
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