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DC Field | Value | Language |
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dc.citation.endPage | 673 | - |
dc.citation.number | 5 | - |
dc.citation.startPage | 667 | - |
dc.citation.title | ADVANCED OPTICAL MATERIALS | - |
dc.citation.volume | 3 | - |
dc.contributor.author | Park, Hyeong-Ryeol | - |
dc.contributor.author | Namgung, Seon | - |
dc.contributor.author | Chen, Xiaoshu | - |
dc.contributor.author | Lindquist, Nathan C. | - |
dc.contributor.author | Giannini, Vincenzo | - |
dc.contributor.author | Francescato, Yan | - |
dc.contributor.author | Maier, Stefan A. | - |
dc.contributor.author | Oh, Sang-Hyun | - |
dc.date.accessioned | 2023-12-22T01:12:40Z | - |
dc.date.available | 2023-12-22T01:12:40Z | - |
dc.date.created | 2019-03-04 | - |
dc.date.issued | 2015-05 | - |
dc.description.abstract | High carrier mobility and tunability in graphene enable fundamental studies for plasmonics and various applications. Despite its versatility, however, single-layer graphene (SLG) suffers from poor coupling efficiency to electromagnetic waves, presenting a major challenge for photonic applications. Compared with visible or infrared radiation, terahertz (THz) waves exhibit higher absorption in SLG due to Drude-like intraband transitions, but the wavelength-to-SLG size mismatch becomes even more dramatic. Here, we experimentally demonstrate 99% extinction of THz wave transmission when SLG covers the openings of 2-nm-wide (approximate to lambda/1 000 000) slits through a metal film. By resonantly coupling THz waves through annular nanogaps, the extremely localized fields lead to near-perfect extinction and strong absorption in SLG. Atomic-layer lithography is used to produce these nanometer-wide, millimeter-long gaps over an entire 4-in. wafer. Furthermore, by integrating these devices with an ionic liquid, enhanced intraband absorption in the SLG leads to 80% modulation of THz waves with an operational voltage as low as 1.5 V. | - |
dc.identifier.bibliographicCitation | ADVANCED OPTICAL MATERIALS, v.3, no.5, pp.667 - 673 | - |
dc.identifier.doi | 10.1002/adom.201400546 | - |
dc.identifier.issn | 2195-1071 | - |
dc.identifier.scopusid | 2-s2.0-84929264206 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/26316 | - |
dc.identifier.url | https://onlinelibrary.wiley.com/doi/full/10.1002/adom.201400546 | - |
dc.identifier.wosid | 000354438000008 | - |
dc.language | 영어 | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | Perfect Extinction of Terahertz Waves in Monolayer Graphene over 2-nm-Wide Metallic Apertures | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary; Optics | - |
dc.relation.journalResearchArea | Materials Science; Optics | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | atomic-layer lithography | - |
dc.subject.keywordAuthor | graphene | - |
dc.subject.keywordAuthor | nanogaps | - |
dc.subject.keywordAuthor | plasmonics | - |
dc.subject.keywordAuthor | terahertz nanophotonics | - |
dc.subject.keywordPlus | TIME-DOMAIN SPECTROSCOPY | - |
dc.subject.keywordPlus | EXTRAORDINARY TRANSMISSION | - |
dc.subject.keywordPlus | PLASMONIC NANOGAP | - |
dc.subject.keywordPlus | FIELD ENHANCEMENT | - |
dc.subject.keywordPlus | ABSORPTION | - |
dc.subject.keywordPlus | LAYER | - |
dc.subject.keywordPlus | METAMATERIALS | - |
dc.subject.keywordPlus | MODULATOR | - |
dc.subject.keywordPlus | ARRAYS | - |
dc.subject.keywordPlus | PHOTODETECTOR | - |
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