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Proceedings Paper

High resolution digital holography with two confocal lenses
Author(s): Qi Fan; Jianlin Zhao; Jun Wang; Juan Du
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Paper Abstract

Based on the research to the resolution of digital holography theoretically and experimentally, a method to realize high lateral resolution digital holographic imaging is experimentally demonstrated. By placing CCD in the rear focal plane of two confocal lenses, their front focal plane as an equivalent digital holographic recording plane can receive more object waves, and the magnifying ratio of the lateral size of the object waves received by CCD is equal to the ratio of focal lengths of two confocal lenses. During the recording of a digital hologram, Shannon sampling criterion can be satisfied by using a spherical reference wave and high resolution CCD (with 4.65×4.65μm2 pixel size). The long working distance belongs to important advantage of the experimental setup. Experimental results show a good agreement with theoretical analysis.

Paper Details

Date Published: 19 May 2006
PDF: 5 pages
Proc. SPIE 6150, 2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 61500K (19 May 2006); doi: 10.1117/12.677993
Show Author Affiliations
Qi Fan, Northwestern Polytechnical Univ. (China)
Jianlin Zhao, Northwestern Polytechnical Univ. (China)
Jun Wang, Northwestern Polytechnical Univ. (China)
Juan Du, Northwestern Polytechnical Univ. (China)


Published in SPIE Proceedings Vol. 6150:
2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment
Xun Hou; Jiahu Yuan; James C. Wyant; Hexin Wang; Sen Han, Editor(s)

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