| Two-step phase-shift interferometry with known but arbitrary reference waves: a graphical interpretation. | |
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MedLine Citation:
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PMID: 23033099 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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There are many applications in biology and metrology where it is important to be able to measure both the amplitude and phase of an optical wave field. There are several different techniques for making this type of measurement, including digital holography and phase retrieval methods. In this paper we propose an analytical generalization of this two-step phase-shifting algorithm. We investigate how to reconstruct the object signal if both reference waves are different in phase and amplitude. The resulting equations produce two different solutions and hence an ambiguity remains as to the correct solution. Because of the complexity of the generalized analytical expressions we propose a graphical-vectorial method for solution of this ambiguity problem. Combining our graphical method with a constraint on the amplitude of the object field we can unambiguously determine the correct result. The results of the simulation are presented and discussed. |
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Authors:
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Nail Sabitov; Thomas Meinecke; Damien P Kelly; Stefan Sinzinger |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Applied optics Volume: 51 ISSN: 1539-4522 ISO Abbreviation: Appl Opt Publication Date: 2012 Oct |
Date Detail:
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Created Date: 2012-10-03 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0247660 Medline TA: Appl Opt Country: United States |
Other Details:
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Languages: eng Pagination: 6831-8 Citation Subset: IM |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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