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Optical Engineering

Resolution improvement in off-axis digital holography using an iterative scheme
Author(s): Jing He; Cheng Liu; Suhas P. Veetil; Shumei Gao; Jicheng Wang; Yueke Wang
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Paper Abstract

The image quality in off-axis digital holography (DH) is often degraded by inaccuracies in the reference wave used for reconstruction and the spatial filtering adopted to avoid twin images and zeroth order diffraction. To enhance the image quality in such cases, coherent diffraction imaging is combined with a DH technique to iteratively reconstruct the hologram. By using a small aperture on the sample plane as a spatial constraint and the recorded diffraction pattern as an intensity constraint, a higher spatial resolution than usual is obtained with the proposed method.

Paper Details

Date Published: 4 August 2014
PDF: 7 pages
Opt. Eng. 53(8) 083101 doi: 10.1117/1.OE.53.8.083101
Published in: Optical Engineering Volume 53, Issue 8
Show Author Affiliations
Jing He, Jiangnan Univ. (China)
Cheng Liu, Jiangnan Univ. (China)
Suhas P. Veetil, Amity Univ. Dubai (United Arab Emirates)
Shumei Gao, Jiangnan Univ. (China)
Jicheng Wang, Jiangnan Univ. (China)
Yueke Wang, Jiangnan Univ. (China)

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