Digital holographic reconstruction of a local object field using an adjustable magnification.
J Opt Soc Am A Opt Image Sci Vis
; 28(6): 1291-6, 2011 Jun 01.
Article
em En
| MEDLINE
| ID: mdl-21643415
ABSTRACT
In the research of digital holography, this paper presents a numerical method using an adjustable magnification for local object field reconstruction together with experiment verification. The method first designs a spherical wave according to the given magnification to illuminate the digital hologram, then through a Fourier transform of diffraction, it calculates the reconstructed image plane. Afterward, a filtering window is set in the image plane to extract the image of the local object field, and then the object field reached hologram plane is formed using diffraction's inverse operation. Finally, the object field is reconstructed through diffraction's angular spectrum theory.
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Coleções:
01-internacional
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MEDLINE
Idioma:
En
Ano de publicação:
2011
Tipo de documento:
Article