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Phase imaging using shifted wavefront sensor images
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DOI：10.1364/OL.39.006177.png)
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Abstract
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We propose a new approach to the complete retrieval of a coherent field (amplitude and phase) using the same hardware configuration as a Shack-Hartmann sensor but with two modifications: first, we add a transversally shifted measurement to resolve ambiguities in the measured phase; and second, we employ factored form descent (FFD), an inverse algorithm for coherence retrieval, with a hard rank constraint. We verified the proposed approach using both numerical simulations and experiments. (C) 2014 Optical Society of America
Keywords:
PRACTICAL ALGORITHM
RETRIEVAL
RECONSTRUCTION
PTYCHOGRAPHY
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