dc.contributor.author | Voronin, Kirill V. | |
dc.contributor.author | Aseguinolaza Aguirreche, Unai | |
dc.contributor.author | Hillenbrand, Rainer | |
dc.contributor.author | Volkov, Valentyn S. | |
dc.contributor.author | Alonso González, Pablo | |
dc.contributor.author | Nikitin, Alexey Y. | |
dc.date.accessioned | 2021-02-03T09:07:22Z | |
dc.date.available | 2021-02-03T09:07:22Z | |
dc.date.issued | 2020 | |
dc.identifier.citation | Nanophotonics 9(7) : 2089-2095 (2020) | es_ES |
dc.identifier.issn | 2192-8606 | |
dc.identifier.issn | 2192-8614 | |
dc.identifier.uri | http://hdl.handle.net/10810/50003 | |
dc.description.abstract | Mid-infrared (mid-IR) optical spectroscopy of molecules is of large interest in physics, chemistry, and biology. However, probing nanometric volumes of molecules is challenging because of the strong mismatch of their mid-infrared absorption and scattering cross-sections with the free-space wavelength. We suggest overcoming this difficulty by nanofocusing acoustic graphene plasmon polaritons (AGPs) - oscillations of Dirac charge carriers coupled to electromagnetic fields with extremely small wavelengths - using a taper formed by a graphene sheet above a metallic surface. We demonstrate that due to the appreciable field enhancement and mode volume reduction, the nanofocused AGPs can efficiently sense molecular fingerprints in nanometric volumes. We illustrate a possible realistic sensing scenario based on AGP interferometry performed with a near-field microscope. Our results can open new avenues for designing tiny sensors based on graphene and other 2D polaritonic materials. | es_ES |
dc.description.sponsorship | A.Y.N. acknowledges the Spanish Ministry of Science, Innovation and Universities (national project MAT2017-88358-C3-3-R). K.V.V. and V.S.V. acknowledge the Russian Science Foundation, grant number 18-79-10208. P.A-G. acknowledges support from the European Research Council under Starting Grant 715496, 2DNANOPTICA. R.H. acknowledges support from the Spanish Ministry of Economy, Industry, and Competitiveness (National Project RTI2018-094830-B-100 and the Project MDM-2016-0618 of the Marie de Maeztu Units of Excellence Program) and the Basque Government (Grant No. IT1164-19). | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | De Gruyter | es_ES |
dc.relation | info:eu-repo/grantAgreement/EC/H2020/715496 | es_ES |
dc.relation | info:eu-repo/grantAgreement/MCIU/MAT2017-88358-C3-3-R | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/RTI2018-094830-B-100 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | * |
dc.subject | graphene plasmon | es_ES |
dc.subject | molecular sensing | es_ES |
dc.subject | nanofocusing | es_ES |
dc.title | Nanofocusing of acoustic graphene plasmon polaritons for enhancing mid-infrared molecular fingerprints | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | This work is licensed under the Creative Commons Attribution 4.0 Public | es_ES |
dc.rights.holder | Atribución 3.0 España | * |
dc.relation.publisherversion | https://www.degruyter.com/document/doi/10.1515/nanoph-2020-0164/html | es_ES |
dc.identifier.doi | 10.1515/nanoph-2020-0164 | |
dc.departamentoes | Física aplicada I | es_ES |
dc.departamentoeu | Fisika aplikatua I | es_ES |