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dc.contributor.authorLi, Peining
dc.contributor.authorHu, Guangwei
dc.contributor.authorDolado, Irene
dc.contributor.authorTymchenko, Mykhailo
dc.contributor.authorQiu, Cheng-Wei
dc.contributor.authorAlfaro Mozaz, Francisco Javier
dc.contributor.authorCasanova Fernández, Félix
dc.contributor.authorHueso Arroyo, Luis Eduardo
dc.contributor.authorLiu, Song
dc.contributor.authorEdgar, James H.
dc.contributor.authorVélez, Saül
dc.contributor.authorAlu, Andrea
dc.contributor.authorHillenbrand, Rainer
dc.date.accessioned2020-11-20T12:12:39Z
dc.date.available2020-11-20T12:12:39Z
dc.date.issued2020-07-21
dc.identifier.citationNature Communications 11 : (2020) // Article ID 3663es_ES
dc.identifier.issn2041-1723
dc.identifier.urihttp://hdl.handle.net/10810/48464
dc.description.abstractPolaritons - coupled excitations of photons and dipolar matter excitations - can propagate along anisotropic metasurfaces with either hyperbolic or elliptical dispersion. At the transition from hyperbolic to elliptical dispersion (corresponding to a topological transition), various intriguing phenomena are found, such as an enhancement of the photonic density of states, polariton canalization and hyperlensing. Here, we investigate theoretically and experimentally the topological transition, the polaritonic coupling and the strong nonlocal response in a uniaxial infrared-phononic metasurface, a grating of hexagonal boron nitride (hBN) nanoribbons. By hyperspectral infrared nanoimaging, we observe a synthetic transverse optical phonon resonance (strong collective near-field coupling of the nanoribbons) in the middle of the hBN Reststrahlen band, yielding a topological transition from hyperbolic to elliptical dispersion. We further visualize and characterize the spatial evolution of a deeply subwavelength canalization mode near the transition frequency, which is a collimated polariton that is the basis for hyperlensing and diffraction-less propagation.es_ES
dc.description.sponsorshipThe authors acknowledge financial support from the Spanish Ministry of Science, Innovation and Universities (national projects MAT2017-88358-C3, MAT2015-65159-R, MAT2015-65525-R, RTI2018-094830-B-100, RTI2018-094861-B-100, and the project MDM-2016-0618 of the Maria de Maeztu Units of Excellence Program) and the Basque Government (PhD fellowship PRE 2018 2 0253 and grant No. IT1164-19). Further, support from the Materials Engineering and Processing program of the National Science Foundation, award number CMMI 1538127, the II-VI Foundation, the Air Force Office of Scientific Research MURI program, the Vannevar Bush Faculty Fellowship, and the Office of Naval Research is greatly appreciated. P.L. acknowledges the start-up funding from Huazhong University of Science and Technology. C.-W.Q. acknowledges financial support from A*STAR Pharos Program (grant number 15270 00014, with project number R-263-000-B91-305).es_ES
dc.language.isoenges_ES
dc.publisherNaturees_ES
dc.relationinfo:eu-repo/grantAgreement/MCIU/MAT2017-88358-C3es_ES
dc.relationinfo:eu-repo/grantAgreement/MCIU/MAT2015-65159-Res_ES
dc.relationinfo:eu-repo/grantAgreement/MCIU/MAT2015-65525-Res_ES
dc.relationinfo:eu-repo/grantAgreement/MCIU/RTI2018-094830-B-100es_ES
dc.relationinfo:eu-repo/grantAgreement/MCIU/RTI2018-094861-B-100es_ES
dc.relationinfo:eu-repo/grantAgreement/MCIU/MDM-2016-0618es_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/es/*
dc.subjectloss polaritonses_ES
dc.subjectgrowthes_ES
dc.titleCollective near-field coupling and nonlocal phenomena in infrared-phononic metasurfaces for nano-light canalizationes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.rights.holderThis 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/.es_ES
dc.rights.holderAtribución 3.0 España*
dc.relation.publisherversionhttps://www.nature.com/articles/s41467-020-17425-9es_ES
dc.identifier.doi10.1038/s41467-020-17425-9
dc.departamentoesElectricidad y electrónicaes_ES
dc.departamentoeuElektrizitatea eta elektronikaes_ES


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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/.
Except where otherwise noted, this item's license is described as 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/.