Origins of All-Optical Generation of Plasmons in Graphene
dc.contributor.author | Tollerton, C | |
dc.contributor.author | Bohn, J | |
dc.contributor.author | Constant, T | |
dc.contributor.author | Horsley, S | |
dc.contributor.author | Chang, DE | |
dc.contributor.author | Hendry, E | |
dc.contributor.author | Li, DZ | |
dc.date.accessioned | 2019-02-06T09:32:49Z | |
dc.date.issued | 2019-03-01 | |
dc.description.abstract | Graphene, despite its centrosymmetric structure, is predicted to have a substantial second order nonlinearity, arising from non-local effects. However, there is disagreement between several published theories and experimental data. Here we derive an expression for the second order conductivity of graphene in the non-local regime using perturbation theory, concentrating on the difference frequency mixing process, and compare our results with those already published. We find a second-order conductivity (σ (2)≈ 10−17AmV−2 ) that is approximately three orders of magnitude less than that estimated from recent experimental results. This indicates that nonlinear optical coupling to plasmons in graphene cannot be described perturbatively through the electronic nonlinearity, as previously thought. We also show that this discrepancy cannot be attributed to the bulk optical nonlinearity of the substrate. As a possible alternative, we present a simple theoretical model of how a non-linearity can arise from ph | en_GB |
dc.description.sponsorship | Fundacio Privada Cellex, Spanish MINECO Severo Ochoa Programme | en_GB |
dc.description.sponsorship | CERCA Programme/Generalitat de Catalunya | en_GB |
dc.description.sponsorship | Engineering and Physical Sciences Research Council (EPSRC) | en_GB |
dc.description.sponsorship | Royal Society | en_GB |
dc.description.sponsorship | TATA | en_GB |
dc.description.sponsorship | European Commission | en_GB |
dc.identifier.citation | Vol. 9, article 3267 | en_GB |
dc.identifier.doi | 10.1038/s41598-019-39961-1 | |
dc.identifier.grantnumber | SEV-2015-0522 | en_GB |
dc.identifier.grantnumber | EP/K041215/1 | en_GB |
dc.identifier.grantnumber | RPG-2016-186 | en_GB |
dc.identifier.grantnumber | FP7-ICT-2013-613024-GRASP | en_GB |
dc.identifier.uri | http://hdl.handle.net/10871/35749 | |
dc.language.iso | en | en_GB |
dc.publisher | Nature Research | en_GB |
dc.rights | © 2019 The Author(s). 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/. | |
dc.title | Origins of All-Optical Generation of Plasmons in Graphene | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2019-02-06T09:32:49Z | |
dc.identifier.issn | 2045-2322 | |
dc.description | This is the final version. Available on open access from Nature Research via the DOI in this record | en_GB |
dc.identifier.journal | Scientific Reports | en_GB |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | en_GB |
dcterms.dateAccepted | 2019-02-04 | |
exeter.funder | ::Engineering and Physical Sciences Research Council (EPSRC) | en_GB |
rioxxterms.version | VoR | en_GB |
rioxxterms.licenseref.startdate | 2019-02-04 | |
rioxxterms.type | Journal Article/Review | en_GB |
refterms.dateFCD | 2019-02-05T09:49:49Z | |
refterms.versionFCD | AM | |
refterms.dateFOA | 2019-03-07T13:24:03Z | |
refterms.panel | B | en_GB |
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Commons license, and indicate if changes were made. The images or other third party material in this
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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/.