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Reconstruction of Digital Holograms by Iterative Phase Retrieval Algorithm:Improvements and Analysis


Liang Zhao, John Healy, Yang Wu, Inbarasan Muniraj, Ra’ed Malallah, Damien Kelly, John Sheridan

Publication Type: 
Refereed Conference Meeting Proceeding
Abstract: Iterative phase retrieval usually requires a good initial guess for the phase. In this paper, we consider two improvements to a recently proposed scheme (Opt. Eng. 55 (3), 033106 (2016)) to acquire the initial guess from a digital holographic system. This set-up is simpler than phase-shifting interferometry, and suppresses the twin image and dc terms without the resolution trade-off involved in off-axis holography. In this paper, we show the benefits of ensuring the propagation algorithm is unitary. We also use a recently proposed iterative phase retrieval algorithm which uses a combination of the Gerschberg-Saxton and hybrid input-output algorithms, and demonstrate the benefit of this algorithm for avoiding stagnation of the algorithm.
Conference Name: 
OSA Digital Holography & 3-D Imaging, Jeju Ireland, South Korea
Digital Object Identifer (DOI): 
Publication Date: 
Conference Location: 
Korea, South (Republic of Korea)
Research Group: 
National University of Ireland, Dublin (UCD)
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