Experimental study of the effects of the spatial filtering on off-axis digital holography operating out and in of the diffraction limit

R. Castañeda, D. Hincapié-Zulauga, J. García-Sucerquia


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Base Information

Volume

V50 - N1 / 2017 Ordinario

Reference

93-102

DOI

http://doi.org/10.7149/OPA.50.1.49016

Language

Spanish

Keywords

Digital holography, spatial filter, diffraction limit

Abstract

This paper presents a theoretical and experimental analysis of the close relationship between the recording of digital holograms operating out or in of the diffraction limit and the spatial filtering process in the overall performance of the numerical reconstruction of the digitally recorded holograms. The results allow to conclude that it is not possible to make a correct spatial filtering for a reliable numerical reconstruction of the recorded holograms, if the recording is not made in the diffraction limit or presents overlapping of the diffraction orders.

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