Gate-Tunable Optical Nonlinearities and Extinction in Graphene/LaAlO3/SrTiO3 Nanostructures
DC Field | Value | Language |
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dc.contributor.author | Sheridan, Erin | - |
dc.contributor.author | Chen, Lu | - |
dc.contributor.author | Li, Jianan | - |
dc.contributor.author | Guo, Qing | - |
dc.contributor.author | Hao, Shan | - |
dc.contributor.author | Yu, Muqing | - |
dc.contributor.author | Eom, Ki-Tae | - |
dc.contributor.author | Lee, Hyungwoo | - |
dc.contributor.author | Lee, Jung-Woo | - |
dc.contributor.author | Eom, Chang-Beom | - |
dc.contributor.author | Irvin, Patrick | - |
dc.contributor.author | Levy, Jeremy | - |
dc.date.accessioned | 2023-12-15T15:09:21Z | - |
dc.date.available | 2023-12-15T15:09:21Z | - |
dc.date.issued | 2020-10 | - |
dc.identifier.issn | 1530-6984 | - |
dc.identifier.issn | 1530-6992 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/89541 | - |
dc.description.abstract | We explore the ultrafast optical response of graphene subjected to intense (similar to 10(6) V/cm) local (similar to 10 nm) electric fields. Nanoscale gating of graphene is achieved using a voltage-biased, SrTiO3-based conductive nanowire junction "written" directly under the graphene and isolated from it by an insulating ultrathin (<2 nm) LaAlO3 barrier. Upon illumination with ultrafast visibleto-near-infrared (VIS-NIR) light pulses, the local field from the nanojunction creates a strong gate-tunable second-order nonlinearity in the graphene and produces a substantial difference-frequency (DFG) and sum-frequency generation (SFG) response detected by the nanojunction. Spectrally sharp, gate-tunable extinction features (>99.9%) are observed in the VIS-NIR and SFG spectral ranges, in parameter regimes that are positively correlated with the enhanced nonlinear response. The observed graphene-light interaction and nonlinear response are of fundamental interest and open the way for future exploitation in graphene-based optical devices such as phase shifters, modulators, and nanoscale THz sources. | - |
dc.format.extent | 8 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Gate-Tunable Optical Nonlinearities and Extinction in Graphene/LaAlO3/SrTiO3 Nanostructures | - |
dc.type | Article | - |
dc.identifier.wosid | 000598727300005 | - |
dc.identifier.doi | 10.1021/acs.nanolett.0c01379 | - |
dc.identifier.bibliographicCitation | NANO LETTERS, v.20, no.10, pp 6966 - 6973 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.scopusid | 2-s2.0-85091415931 | - |
dc.citation.endPage | 6973 | - |
dc.citation.startPage | 6966 | - |
dc.citation.title | NANO LETTERS | - |
dc.citation.volume | 20 | - |
dc.citation.number | 10 | - |
dc.type.docType | Article | - |
dc.publisher.location | 미국 | - |
dc.subject.keywordAuthor | LAO/STO | - |
dc.subject.keywordAuthor | graphene | - |
dc.subject.keywordAuthor | plasmons | - |
dc.subject.keywordAuthor | terahertz spectroscopy | - |
dc.subject.keywordAuthor | VIS-NIR | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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