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Proceedings Paper

Digital off-axis holography with angular multiplexing and synthetic aperture
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Paper Abstract

This paper discusses conventional synthetic-aperture method combined angular multiplexing in digital holography to increase the resolution and to enlarge the field of view at the same time. A structured illumination is used to realize angular multiplexing. A camera is moved by a motorized x-y stage, and scanning is performed at imaging plane. In this way we extend the band-pass for single hologram recording as well as obtain a greater sensor area resulting in a larger numerical aperture (NA). A larger NA enables a more detailed reconstruction combined with a smaller depth of field. Moreover, a phase map of the object is experimentally presented.

Paper Details

Date Published: 17 July 2015
PDF: 4 pages
Proc. SPIE 9524, International Conference on Optical and Photonic Engineering (icOPEN 2015), 95241C (17 July 2015); doi: 10.1117/12.2189442
Show Author Affiliations
Zhaomin Wang, Ngee Ann Polytechnic (Singapore)
Nanyang Technological Univ. (Singapore)
Weijuan Qu, Ngee Ann Polytechnic (Singapore)
Fang Yang, Ngee Ann Polytechnic (Singapore)
Yongfu Wen, Ngee Ann Polytechnic (Singapore)
Asundi Anand, Nanyang Technological Univ. (Singapore)

Published in SPIE Proceedings Vol. 9524:
International Conference on Optical and Photonic Engineering (icOPEN 2015)
Anand K. Asundi; Yu Fu, Editor(s)

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