{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,7]],"date-time":"2026-01-07T08:06:27Z","timestamp":1767773187365,"version":"build-2065373602"},"reference-count":55,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2022,11,16]],"date-time":"2022-11-16T00:00:00Z","timestamp":1668556800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["52006056","TKTSPY-2020-01-04","2020B090923003","2020JJ3012"],"award-info":[{"award-number":["52006056","TKTSPY-2020-01-04","2020B090923003","2020JJ3012"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"China Academy of Space Technology","award":["52006056","TKTSPY-2020-01-04","2020B090923003","2020JJ3012"],"award-info":[{"award-number":["52006056","TKTSPY-2020-01-04","2020B090923003","2020JJ3012"]}]},{"name":"Key-Area Research and Development Program of Guangdong Province","award":["52006056","TKTSPY-2020-01-04","2020B090923003","2020JJ3012"],"award-info":[{"award-number":["52006056","TKTSPY-2020-01-04","2020B090923003","2020JJ3012"]}]},{"name":"Natural Science Foundation of Hunan","award":["52006056","TKTSPY-2020-01-04","2020B090923003","2020JJ3012"],"award-info":[{"award-number":["52006056","TKTSPY-2020-01-04","2020B090923003","2020JJ3012"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Biomimetics"],"abstract":"<jats:p>With the development of micro\/nano-optics, metasurfaces are gaining increasing attention working as novel electromagnetic wave control devices. Among which, metalenses have been developed and applied as a typical application of metasurfaces owing to their unique optical properties. However, most of those previous metalenses can only produce one focal point, which severely limits their applications. Inspired by the fly compound eye, we propose a special kind of spatial multifocal metalens. Our metalenses can reverse the polarization state of the incident circularly polarized light, which is then focused. In addition, a horizontally aligned multifocal metalens can be achieved by designing reasonable phase and region distributions, which is similar to a vertically aligned one. Most significantly, a spatially 3D-arrayed multifocal metalens with low crosstalk is well achieved by combining these two distribution methods. The proposed bionic 3D-arrayed multifocal metalens with amazing focusing effect promises applications in imaging, nanoparticle manipulation, optical communication, and other fields.<\/jats:p>","DOI":"10.3390\/biomimetics7040200","type":"journal-article","created":{"date-parts":[[2022,11,17]],"date-time":"2022-11-17T03:24:34Z","timestamp":1668655474000},"page":"200","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Theoretical Design of a Bionic Spatial 3D-Arrayed Multifocal Metalens"],"prefix":"10.3390","volume":"7","author":[{"given":"Guihui","family":"Duan","sequence":"first","affiliation":[{"name":"Interdisciplinary Research Center of Low-Carbon Technology and Equipment, College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ce","family":"Zhang","sequence":"additional","affiliation":[{"name":"Qian Xuesen Laboratory of Space Technology, China Academy of Space Technology (CAST), Beijing 100094, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Dongsheng","family":"Yang","sequence":"additional","affiliation":[{"name":"Beijing Spacecrafts, Beijing 100094, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2967-4546","authenticated-orcid":false,"given":"Zhaolong","family":"Wang","sequence":"additional","affiliation":[{"name":"Interdisciplinary Research Center of Low-Carbon Technology and Equipment, College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, China"},{"name":"Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, Suzhou University of Science and Technology, Suzhou 100094, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,11,16]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"453","DOI":"10.1016\/j.ijheatmasstransfer.2019.05.085","article-title":"Enhancements of absorption and photothermal conversion of solar energy enabled by surface plasmon resonances in nanoparticles and metamaterials","volume":"140","author":"Wang","year":"2019","journal-title":"Int. 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