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dc.contributorVirginia Techen_US
dc.contributor.authorKim, Taegeunen_US
dc.contributor.authorPoon, Ting-Chungen_US
dc.date.accessioned2014-03-14T15:04:24Z
dc.date.available2014-03-14T15:04:24Z
dc.date.issued2009-12-01
dc.identifier.citationTaegeun Kim and Ting-Chung Poon, "Autofocusing in optical scanning holography," Appl. Opt. 48, H153-H159 (2009); doi: 10.1364/AO.48.00H153
dc.identifier.issn1559-128X
dc.identifier.urihttp://hdl.handle.net/10919/25892
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 America
dc.format.mimetypeapplication/pdfen_US
dc.language.isoen_US
dc.publisherOptical Society of America
dc.subjectMicroscopyen_US
dc.subjectObjectsen_US
dc.subjectTimeen_US
dc.titleAutofocusing in optical scanning holographyen_US
dc.typeArticleen_US
dc.typeConference proceedingen_US
dc.identifier.urlhttp://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-34-H153
dc.date.accessed2014-02-06
dc.title.serialApplied Optics
dc.identifier.doihttps://doi.org/10.1364/AO.48.00H153
dc.type.dcmitypeTexten_US


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