Autofocusing in optical scanning holography

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dc.contributorVirginia Techen
dc.contributor.authorKim, Taegeunen
dc.contributor.authorPoon, Ting-Chungen
dc.contributor.departmentElectrical and Computer Engineeringen
dc.date.accessed2014-02-06en
dc.date.accessioned2014-03-14T15:04:24Zen
dc.date.available2014-03-14T15:04:24Zen
dc.date.issued2009-12-01en
dc.description.abstractWe present autofocusing in optical scanning holography (OSH) with experimental results. We first record the complex hologram of an object using OSH and then create the Fresnel zone plate (FZP) that codes the object constant within the depth range of the object using Gaussian low-pass filtering. We subsequently synthesize a real-only spectrum hologram in which its phase term contains information about a distance parameter. Finally, we extract the distance parameter from the real-only spectrum hologram using fringe-adjusted filtering and the Wigner distribution. Using the extracted distance parameter, we reconstruct a three-dimensional image of the object from the complex hologram using digital convolution, which bypasses the conventional blind convolution to reconstruct a hologram. To the best of our knowledge, this is the first report with experimental results that autofocusing in OSH is possible without any searching algorithm or tracking process. (C) 2009 Optical Society of Americaen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationTaegeun Kim and Ting-Chung Poon, "Autofocusing in optical scanning holography," Appl. Opt. 48, H153-H159 (2009); doi: 10.1364/AO.48.00H153en
dc.identifier.doihttps://doi.org/10.1364/AO.48.00H153en
dc.identifier.issn1559-128Xen
dc.identifier.urihttp://hdl.handle.net/10919/25892en
dc.identifier.urlhttp://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-34-H153en
dc.language.isoenen
dc.publisherOptical Society of Americaen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectMicroscopyen
dc.subjectObjectsen
dc.subjectTimeen
dc.titleAutofocusing in optical scanning holographyen
dc.title.serialApplied Opticsen
dc.typeArticle - Refereeden
dc.typeConference proceedingen
dc.type.dcmitypeTexten

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