Wave front reconstruction by means of phase-shifting digital in-line holography

Citation
Sc. Lai et al., Wave front reconstruction by means of phase-shifting digital in-line holography, OPT COMMUN, 173(1-6), 2000, pp. 155-160
Citations number
10
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
OPTICS COMMUNICATIONS
ISSN journal
0030-4018 → ACNP
Volume
173
Issue
1-6
Year of publication
2000
Pages
155 - 160
Database
ISI
SICI code
0030-4018(20000101)173:1-6<155:WFRBMO>2.0.ZU;2-#
Abstract
A method of recording four quadrature-reference-wave-holograms by CCD and r econstructing the object wave front by numerical calculation is presented i n this paper. The terms of direct transmitting, auto-correlation and conjug ate wave in the four reconstructing waves are cancelled out and only the or iginal object wave is left after overlapping. Reconstructed images are obta ined by calculating through Fresnel-Kirchhoff integral on computers. The in fluences of the noise of CCD and the phase-shifting error of phase-shift el ements to the quality of the reconstructed images are analyzed. Experimenta l results show that pure original object wave or the conjugate object wave can be reconstructed in in-line holograms using the method in this paper. ( C) 2000 Elsevier Science B.V. All rights reserved.