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Optical Engineering

Experimental demonstration of the longitudinal image shift in digital holography
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Paper Abstract

In digital holography, it is necessary to know the distance of the object from the recording charge-coupled device camera to obtain a correct numerical reconstruction process. The presence of a plane parallel plate along the path of the object beam, such as a beamsplitter cube, often used in interferometers, affects the actual reconstruction distance. This effect, to our knowledge, has never been discussed in the literature despite the fact that it adds a contribution that cannot be ignored in the reconstruction process. We evaluate the effect for a spherical object wavefront as well as in the case of an extended object.

Paper Details

Date Published: 1 June 2003
PDF: 6 pages
Opt. Eng. 42(6) doi: 10.1117/1.1569496
Published in: Optical Engineering Volume 42, Issue 6
Show Author Affiliations
Sergio M. De Nicola, Istituto di Cibernetica (Italy)
Pietro Ferraro, Istituto per la Microelettronica e i Microsistemi (Italy)
Andrea Finizio, Istituto di Cibernetica (Italy)
Simonetta Grilli, Istituto Nazionale di Ottica Applicata (Italy)
Giovanni Pierattini, Istituto di Cibernetica (Italy)

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