Academic Journal
Manipulating Type-I and Type-II Dirac Polaritons in Cavity-Embedded Honeycomb Metasurfaces
| العنوان: | Manipulating Type-I and Type-II Dirac Polaritons in Cavity-Embedded Honeycomb Metasurfaces |
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| المؤلفون: | Mann, C-R, Sturges, TJ, Weick, G, Barnes, WL, Mariani, E |
| بيانات النشر: | Springer Nature |
| سنة النشر: | 2018 |
| المجموعة: | University of Exeter: Open Research Exeter (ORE) |
| الوصف: | This is the author accepted manuscript. The final version is available from Springer Nature via the DOI in this record ; Pseudorelativistic Dirac quasiparticles have emerged in a plethora of artificial graphene systems that mimic the underlying honeycomb symmetry of graphene. However, it is notoriously difficult to manipulate their properties without modifying the lattice structure. Here we theoretically investigate polaritons supported by honeycomb metasurfaces and, despite the trivial nature of the resonant elements, we unveil rich Dirac physics stemming from a non-trivial winding in the light-matter interaction. A new kind of type-II Dirac point emerges which simultaneously exists with its conventional type-I counterpart. By modifying only the photonic environment via an enclosing cavity, one can manipulate the location of the type-II Dirac points, leading to distinct polariton phases. This enables one to alter the fundamental properties of the emergent Dirac polaritons while preserving the lattice structure—a unique scenario which has no analog in real or artificial graphene systems so far. Exploiting the photonic environment will thus give rise to unexplored Dirac physics at the subwavelength scale. ; C.-R.M. and T.J.S. acknowledge financial support from the Engineering and Physical Sciences Research Council (EPSRC) of the United Kingdom. In addition, C.-R.M acknowledges the EPSRC Centre for Doctoral Training in Metamaterials (Grant No. EP/L015331/1) and QinetiQ for additional funding. G.W. acknowledges financial support from Agence Nationale de la Recherche (Project ANR-14-CE26-0005 QMetaMat) and the Centre National de la Recherche Scientifique through the Projet International de Cooperation Scientifique program (Contract No. 6384 ´ APAG). W.L.B. acknowledges the financial support from EPSRC (Grant No. EP/K041150/1) and EU ERC project Photmat (ERC-2016-ADG-742222). E.M. acknowledges financial support from the Leverhulme Trust (Research Project Grant RPG-2015-101), and the Royal Society (International ... |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | http://hdl.handle.net/10871/32187; 10871/32187; Vol. 9, article 2194; http://hdl.handle.net/10871/33238; Nature Communications |
| DOI: | 10.1038/s41467-018-03982-7 |
| الاتاحة: | http://hdl.handle.net/10871/33238 https://doi.org/10.1038/s41467-018-03982-7 |
| Rights: | © The Author(s) 2018. 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/. ; http://creativecommons.org/licenses/by/4.0/ |
| رقم الانضمام: | edsbas.3C68CA54 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1038/s41467-018-03982-7 |
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