Designing collective non-local responses of metasurfaces
dc.contributor.author | Capers, JR | |
dc.contributor.author | Boyes, SJ | |
dc.contributor.author | Hibbins, AP | |
dc.contributor.author | Horsley, SAR | |
dc.date.accessioned | 2021-09-22T09:18:00Z | |
dc.date.issued | 2021-09-16 | |
dc.description.abstract | We propose a numerically efficient `adjoint' inverse design method to optimize a planar structure of dipole scatterers, to manipulate the radiation from an electric dipole emitter. Several examples are presented: modification of the near-field to provide a 3 fold enhancement in power emission; re-structuring the far-field radiation pattern to exhibit chosen directivity; and the design of a discrete `Luneburg lens'. Additionally, we develop a clear physical interpretation of the optimized structure, by extracting `eigen-polarizabilities' of the system. We find that large `eigen-polarizability' corresponds to a large collective response of the scatterers. This framework may find utility in wavefront shaping as well as in the design and characterisation of non-local metasurfaces. | en_GB |
dc.description.sponsorship | Engineering and Physical Sciences Research Council (EPSRC) | en_GB |
dc.description.sponsorship | Royal Society | en_GB |
dc.description.sponsorship | Defence Science Technology Laboratory (DSTL) | en_GB |
dc.identifier.citation | Vol. 4, article 209 | en_GB |
dc.identifier.doi | https://doi.org/10.1038/s42005-021-00713-1 | |
dc.identifier.grantnumber | EP/L015331/1 | en_GB |
dc.identifier.grantnumber | RPG-2016-186 | en_GB |
dc.identifier.uri | http://hdl.handle.net/10871/127195 | |
dc.language.iso | en | en_GB |
dc.publisher | Nature Research | en_GB |
dc.relation.url | https://doi.org/10.24378/exe.3504 | en_GB |
dc.rights | Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. | en_GB |
dc.subject | Metamaterials | en_GB |
dc.subject | Nanophotonics and plasmonics | en_GB |
dc.title | Designing collective non-local responses of metasurfaces | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2021-09-22T09:18:00Z | |
dc.identifier.issn | 2399-3650 | |
dc.description | This is the final version. Available from Nature Research via the DOI in this record. | en_GB |
dc.description | Data availability: All data created during this research are openly available from the University of Exeter’s institutional repository https://doi.org/10.24378/exe.3504. | en_GB |
dc.description | Code availability: All custom computer programs created during this research are openly available from the University of Exeter’s institutional repository https://doi.org/10.24378/exe.3504. | en_GB |
dc.identifier.journal | Communications Physics | en_GB |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | en_GB |
dcterms.dateAccepted | 2021-08-27 | |
exeter.funder | ::Royal Society (Charity) | en_GB |
rioxxterms.version | VoR | en_GB |
rioxxterms.licenseref.startdate | 2021-09-16 | |
rioxxterms.type | Journal Article/Review | en_GB |
refterms.dateFCD | 2021-09-22T09:12:20Z | |
refterms.versionFCD | VoR | |
refterms.dateFOA | 2021-09-22T09:18:05Z | |
refterms.panel | B | en_GB |
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Except where otherwise noted, this item's licence is described as Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.