{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,7]],"date-time":"2026-10-07T04:13:34Z","timestamp":1791346414684,"version":"4.3.1"},"reference-count":84,"publisher":"MDPI AG","issue":"13","license":[{"start":{"date-parts":[[2021,7,4]],"date-time":"2021-07-04T00:00:00Z","timestamp":1625356800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100014188","name":"Ministry of Science and ICT, South Korea","doi-asserted-by":"publisher","award":["2021-0-00750"],"award-info":[{"award-number":["2021-0-00750"]}],"id":[{"id":"10.13039\/501100014188","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Recently, optical dielectric metasurfaces, ultrathin optical skins with densely arranged dielectric nanoantennas, have arisen as next-generation technologies with merits for miniaturization and functional improvement of conventional optical components. In particular, dielectric metalenses capable of optical focusing and imaging have attracted enormous attention from academic and industrial communities of optics. They can offer cutting-edge lensing functions owing to arbitrary wavefront encoding, polarization tunability, high efficiency, large diffraction angle, strong dispersion, and novel ultracompact integration methods. Based on the properties, dielectric metalenses have been applied to numerous three-dimensional imaging applications including wearable augmented or virtual reality displays with depth information, and optical sensing of three-dimensional position of object and various light properties. In this paper, we introduce the properties of optical dielectric metalenses, and review the working principles and recent advances in three-dimensional imaging applications based on them. The authors envision that the dielectric metalens and metasurface technologies could make breakthroughs for a wide range of compact optical systems for three-dimensional display and sensing.<\/jats:p>","DOI":"10.3390\/s21134584","type":"journal-article","created":{"date-parts":[[2021,7,4]],"date-time":"2021-07-04T22:35:22Z","timestamp":1625438122000},"page":"4584","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":38,"title":["Dielectric Metalens: Properties and Three-Dimensional Imaging Applications"],"prefix":"10.3390","volume":"21","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9627-4465","authenticated-orcid":false,"given":"Sun-Je","family":"Kim","sequence":"first","affiliation":[{"name":"Department of Physics, Myongji University, Myongjiro 116, Namdong, Cheoin-gu, Yongin 17058, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Changhyun","family":"Kim","sequence":"additional","affiliation":[{"name":"Inter-University Semiconductor Research Center, School of Electrical and Computer Engineering, Seoul National University, Gwanak-Gu Gwanakro 1, Seoul 08826, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Youngjin","family":"Kim","sequence":"additional","affiliation":[{"name":"Inter-University Semiconductor Research Center, School of Electrical and Computer Engineering, Seoul National University, Gwanak-Gu Gwanakro 1, Seoul 08826, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jinsoo","family":"Jeong","sequence":"additional","affiliation":[{"name":"Hologram Research Center, Korea Electronics Technology Institute, 8 Floor, 11, World cup buk-ro 54-gil, Mapo-gu, Seoul 13488, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Seokho","family":"Choi","sequence":"additional","affiliation":[{"name":"Department of Physics, Myongji University, Myongjiro 116, Namdong, Cheoin-gu, Yongin 17058, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Woojun","family":"Han","sequence":"additional","affiliation":[{"name":"Department of Physics, Myongji University, Myongjiro 116, Namdong, Cheoin-gu, Yongin 17058, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jaisoon","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Physics, Myongji University, Myongjiro 116, Namdong, Cheoin-gu, Yongin 17058, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Byoungho","family":"Lee","sequence":"additional","affiliation":[{"name":"Inter-University Semiconductor Research Center, School of Electrical and Computer Engineering, Seoul National University, Gwanak-Gu Gwanakro 1, Seoul 08826, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2021,7,4]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"076401","DOI":"10.1088\/0034-4885\/79\/7\/076401","article-title":"A review of metasurfaces: Physics and applications","volume":"79","author":"Chen","year":"2016","journal-title":"Rep. 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