Moire Interferometry Near The Theoretical Limit

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dc.contributorVirginia Techen
dc.contributor.authorWeissman, Eric M.en
dc.contributor.authorPost, Danielen
dc.contributor.departmentBiomedical Engineering and Mechanicsen
dc.date.accessed2014-02-24en
dc.date.accessioned2014-04-04T15:12:23Zen
dc.date.available2014-04-04T15:12:23Zen
dc.date.issued1982-01-01en
dc.description.abstractThe theoretical upper limit of moire interferometry is approached as the reference grating pitch approaches _/2 and its frequency approaches 2/_. This work demonstrates the method at 97.6% of the theoretical limit. A virtual reference grating of 4000 lines/mm (101,600 lines/in.) was used in conjunction with a phase type reflection grating of half of that frequency on the specimen. Sensitivity was 0.25 _m/fringe (9.8 _in./fringe). In-plane displacement fringes of excellent definition were obtained throughout the 76 _ 51-mm (3 _ 2-in.) field of view. They were very closely packed, exhibiting a maximum fringe density of 24 fringes/mm (610 fringes/in.). Effectiveness of moire interferometry near the theoretical limit was proved.en
dc.description.sponsorshipNational Science Foundationen
dc.description.sponsorshipEngineering Science and Mechanics Department of Virginia Polytechnic Institute & State Universityen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationEric M. Weissman and Daniel Post, "Moire interferometry near the theoretical limit," Appl. Opt. 21, 1621-1623 (1982). doi: 10.1364/AO.21.001621en
dc.identifier.doihttps://doi.org/10.1364/AO.21.001621en
dc.identifier.issn0003-6935en
dc.identifier.urihttp://hdl.handle.net/10919/46936en
dc.identifier.urlhttp://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-21-9-1621en
dc.language.isoen_USen
dc.publisherOptical Society of Americaen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.titleMoire Interferometry Near The Theoretical Limiten
dc.title.serialApplied Opticsen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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