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Proceedings Paper

Multiplexing and demultiplexing of digital holograms recorded in microscopic configuration
Author(s): Melania Paturzo; Pasquale Memmolo; Antonia Tulino; Andrea Finizio; Lisa Miccio; Pietro Ferraro
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Paper Abstract

We investigate the possibility to multiplexing and de-multiplexing numerically digital holograms recorded by means of a Mach-Zehnder interferometric microscope. The digital holograms are multiplexed and de-multiplexed thanks to the unique property of the digital holography to numerically manage the complex wavefields in different reconstruction planes. Two kind of multiplexing techniques are investigated. The first one allows to multiplex up to hundreds of digital holograms retrieving correctly quantitative information about their amplitude and phase maps. This technique can be used to optimize the storage of a large number of digital holograms or their transmission process from a recording head to a remote display unit. The second method consists in the angular multiplexing and de-multiplexing of several digital holograms. This technique has been performed rotating numerically one hologram at different angles and adding all the rotated holograms to obtain a single synthetic digital hologram. However, for this technique, a multiplexed digital hologram can be also obtained rotating the CCD array during the holograms recording process. The distortions caused by the multiplexing/de-multiplexing procedures has been evaluated for both the techniques.

Paper Details

Date Published: 17 June 2009
PDF: 8 pages
Proc. SPIE 7390, Modeling Aspects in Optical Metrology II, 73901F (17 June 2009); doi: 10.1117/12.827984
Show Author Affiliations
Melania Paturzo, Istituto Nazionale di Ottica Applicata, CNR (Italy)
Istituto di Cibernetica, CNR (Italy)
Pasquale Memmolo, Istituto Nazionale di Ottica Applicata, CNR (Italy)
Istituto di Cibernetica, CNR (Italy)
Univ. degli Studi di Napoli Federico II (Italy)
Antonia Tulino, Univ. degli Studi di Napoli Federico II (Italy)
Andrea Finizio, Istituto Nazionale di Ottica Applicata, CNR (Italy)
Istituto di Cibernetica, CNR (Italy)
Lisa Miccio, Istituto Nazionale di Ottica Applicata, CNR (Italy)
Istituto di Cibernetica, CNR (Italy)
Pietro Ferraro, Istituto Nazionale di Ottica Applicata, CNR (Italy)
Istituto di Cibernetica, CNR (Italy)


Published in SPIE Proceedings Vol. 7390:
Modeling Aspects in Optical Metrology II
Harald Bosse; Bernd Bodermann; Richard M. Silver, Editor(s)

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