Wave front reconstruction of Fresnel off-axis holograms with compensation of aberrations by means of phase-shifting digital holography

Year: 2002

Authors: De Nicola S., Ferraro P., Finizio A., Pierattini G.

Autors Affiliation: Istituto Nazionale di Ottica Applicata, Sez. di Napoli, Via Campi Flegrei 34, 80078 Pozzuoli (Na), Italy;
Istituto di Cibernetica del CNR, “Edoardo Caianiello”, Compr. “A. Olivetti”, Fabbr. 70, Via Campi Flegrei 34, 80078 Pozzuoli (Na), Italy

Abstract: Off-axis holograms recorded with a CCD camera are numerically reconstructed in amplitude by calculating through the Fresnel–Kirchhoff integral. A phase-shifting Mach–Zehnder interferometer is used for recording four-quadrature phase-shifted off-axis holograms. The basic principle of this technique and its experimental verification are described. We show that the application of this algorithm allows for the suppression of the zero order of diffraction and of the twin image and that the contrast of the reconstructed images can be further enhanced by digital compensation of the aberrations introduced by the holographic recording system. © 2002 Elsevier Science Ltd. All rights reserved

Journal/Review: OPTICS AND LASERS IN ENGINEERING

Volume: 37 (4)      Pages from: 331  to: 340

KeyWords: Digital holography; Numerical reconstruction; Phase shift
DOI: 10.1016/S0143-8166(01)00087-2

Citations: 76
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