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4 August 2014 Resolution improvement in off-axis digital holography using an iterative scheme
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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.
© 2014 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2014/$25.00 © 2014 SPIE
Jing He, Cheng Liu, Suhas P. Veetil, Shumei Gao, Jicheng Wang, and Yueke Wang "Resolution improvement in off-axis digital holography using an iterative scheme," Optical Engineering 53(8), 083101 (4 August 2014). https://doi.org/10.1117/1.OE.53.8.083101
Published: 4 August 2014
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