High Contrast Ultrathin Light-Field Camera Using Inverted Microlens Arrays with Metal-Insulator-Metal Optical Absorber

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dc.contributor.authorBae, Sang-Inko
dc.contributor.authorKim, Kisooko
dc.contributor.authorJang, Kyung-Wonko
dc.contributor.authorKim, Hyun-Kyungko
dc.contributor.authorJeong, Ki-Hunko
dc.date.accessioned2021-03-22T08:30:30Z-
dc.date.available2021-03-22T08:30:30Z-
dc.date.created2021-02-08-
dc.date.issued2021-03-
dc.identifier.citationAdvanced Optical Materials, v.9, no.6, pp.2001657-
dc.identifier.issn2195-1071-
dc.identifier.urihttp://hdl.handle.net/10203/281743-
dc.description.abstractLight-field imaging has attracted much attention in constructing 3D objects with a simple configuration and capturing all the spatial and directional data in a single photographic exposure. Here, an ultrathin light-field camera (ULFC) for high contrast and high-resolution light-field imaging using a metal-insulator-metal optical absorber based inverted microlens arrays (MIM-iMLA) is reported. A metal-insulator-metal based optical absorber (MIM-OA) between microlenses exhibits high light absorption in the full visible region, thereby highly blocking microlens crosstalk. The MIM-iMLA double the image contrast and improve MTF50 by up to 32%, compared to conventional light-field image. In addition, the MIM-iMLA substantially reduces an image plane distance and brings the objective lens position closer to the MLA. The ULFC exhibits a short total track length of 5.1 mm, demonstrating high contrast light-field image acquisition and high accuracy 3D depth map estimation after light-field rendering. This ultrathin and high contrast light-field camera can provide a new platform for miniaturized 3D cameras in biomedical applications, biometrics, automated inspection, or mobile camera applications.-
dc.languageEnglish-
dc.publisherJohn Wiley and Sons Inc.-
dc.titleHigh Contrast Ultrathin Light-Field Camera Using Inverted Microlens Arrays with Metal-Insulator-Metal Optical Absorber-
dc.typeArticle-
dc.identifier.wosid000608833400001-
dc.identifier.scopusid2-s2.0-85100143978-
dc.type.rimsART-
dc.citation.volume9-
dc.citation.issue6-
dc.citation.beginningpage2001657-
dc.citation.publicationnameAdvanced Optical Materials-
dc.identifier.doi10.1002/adom.202001657-
dc.contributor.localauthorJeong, Ki-Hun-
dc.contributor.nonIdAuthorKim, Hyun-Kyung-
dc.description.isOpenAccessY-
dc.type.journalArticleArticle-
dc.subject.keywordAuthordepth estimation-
dc.subject.keywordAuthorhigh resolution-
dc.subject.keywordAuthorlight-field camera-
dc.subject.keywordAuthormetal-insulator-metal absorber-
dc.subject.keywordAuthormicrolens arrays-
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