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Optical Engineering

Iterative reconstruction of digital holograms from three intensity measurements
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Paper Abstract

A practical technique is presented based on DH, for the reconstruction of a wavefront from three recorded intensity images. Combining the off-axis Fourier spatial filtering (OFSF) technique with iterative phase retrieval algorithms, it is shown how the twin image can be eliminated. The proposed method overcomes system geometry constraints and improves both the flexibility and resolution associated with OFSF-based DH. It also overcomes the cost problem associated with phase-shifting interferometry-based DH. In order to demonstrate the performance of the proposed DH method, both simulation and experiment results for objects having smooth and rough surfaces are presented.

Paper Details

Date Published: 28 March 2016
PDF: 12 pages
Opt. Eng. 55(3) 033106 doi: 10.1117/1.OE.55.3.033106
Published in: Optical Engineering Volume 55, Issue 3
Show Author Affiliations
Liang T. Zhao, Univ. College Dublin (Ireland)
Yang Wu, Univ. College Dublin (Ireland)
Damien P. Kelly, Technische Univ. Ilmenau (Germany)
John T. Sheridan, Univ. College Dublin (Ireland)

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