| Continuous self-imaging regime with a double-grating mask. | |
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MedLine Citation:
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PMID: 19844307 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We analyze the Talbot effect produced by a mask composed of two diffraction gratings. Combinations with phase and amplitude gratings have been studied in the near-field regime. For a two-phase-gratings configuration, the Talbot effect is canceled, even when using monochromatic light; that is, the intensity distribution is nearly independent of the distance from the mask to the observation plane. Therefore, the mechanical tolerances of devices that use the Talbot effect may be improved. In addition, the spatial frequency of the fringes is quadrupled, which improves the accuracy of devices that employ this mask. An experimental verification for the best case two phase gratings, has also been performed, validating the theoretical results. |
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Authors:
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Luis Miguel Sanchez-Brea; Francisco Jose Torcal-Milla; Eusebio Bernabeu |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Applied optics Volume: 48 ISSN: 1539-4522 ISO Abbreviation: Appl Opt Publication Date: 2009 Oct |
Date Detail:
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Created Date: 2009-10-21 Completed Date: 2010-01-05 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: 5722-7 Citation Subset: IM |
Affiliation:
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Optics Department, Applied Optics Complutense Group, Universidad Complutense de Madrid, Facultad de Ciencias F??sicas, Ciudad Universitaria s.n., 28040 Madrid, Spain. sanchezbrea@fis.ucm.es |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Contrast Sensitivity Equipment Design Image Interpretation, Computer-Assisted / methods* Image Processing, Computer-Assisted Light Optics and Photonics* Pattern Recognition, Visual Refractometry / methods* |
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