DC Field | Value | Language |
---|---|---|
dc.contributor.author | Han, Sanghoon | ko |
dc.contributor.author | Kim, Joon-Yeon | ko |
dc.contributor.author | Kang, Taehee | ko |
dc.contributor.author | Bahk, Young-Mi | ko |
dc.contributor.author | Rhie, Jiyeah | ko |
dc.contributor.author | Kang, Bong Joo | ko |
dc.contributor.author | Kim, Yong Seung | ko |
dc.contributor.author | Park, Joohyun | ko |
dc.contributor.author | Kim, Won Tae | ko |
dc.contributor.author | Jeon, Hyeongtag | ko |
dc.contributor.author | Roterrnund, Fabian | ko |
dc.contributor.author | Kim, Dai-Sik | ko |
dc.date.accessioned | 2016-12-01T04:58:51Z | - |
dc.date.available | 2016-12-01T04:58:51Z | - |
dc.date.created | 2016-11-21 | - |
dc.date.created | 2016-11-21 | - |
dc.date.created | 2016-11-21 | - |
dc.date.issued | 2016-08 | - |
dc.identifier.citation | ACS PHOTONICS, v.3, no.8, pp.1440 - 1445 | - |
dc.identifier.issn | 2330-4022 | - |
dc.identifier.uri | http://hdl.handle.net/10203/214482 | - |
dc.description.abstract | We investigated optical nonlinearity induced by electron tunneling through an insulating vertical gap between metals, both at terahertz frequency and at near-infrared frequency. We adopted graphene and alumina layers as gap materials to form gap widths of 3 angstrom and 1.5 nm, respectively. Transmission measurements show that tunneling-induced transmittance changes from strong fields at the gaps can be observed with relatively weak incident fields at terahertz frequency due to high field enhancement, whereas nonlinearity at the near-infrared frequency is restricted by laser-induced metal damages. Even when the same level of tunneling currents occurs at both frequencies, transmittance in the terahertz regime decreases much faster than that in the near-infrared regime. An equivalent circuit model regarding the tunneling as a resistance component reveals that strong terahertz nonlinearity is due to much smaller displacement currents relative to tunneling currents, also explaining small nonlinearity of the near-infrared regime with orders of magnitude larger displacement currents. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | FIELD ENHANCEMENT | - |
dc.subject | QUANTUM PLASMONICS | - |
dc.subject | TUNNELING TIME | - |
dc.subject | ELECTRON | - |
dc.subject | HETEROSTRUCTURE | - |
dc.subject | NANOSTRUCTURES | - |
dc.subject | PHOTOEMISSION | - |
dc.subject | RESONANCES | - |
dc.subject | GENERATION | - |
dc.subject | GRAPHENE | - |
dc.title | Colossal Terahertz Nonlinearity in Angstrom- and Nanometer-Sized Gaps | - |
dc.type | Article | - |
dc.identifier.wosid | 000381717600011 | - |
dc.identifier.scopusid | 2-s2.0-84983413178 | - |
dc.type.rims | ART | - |
dc.citation.volume | 3 | - |
dc.citation.issue | 8 | - |
dc.citation.beginningpage | 1440 | - |
dc.citation.endingpage | 1445 | - |
dc.citation.publicationname | ACS PHOTONICS | - |
dc.identifier.doi | 10.1021/acsphotonics.6b00103 | - |
dc.contributor.localauthor | Roterrnund, Fabian | - |
dc.contributor.nonIdAuthor | Han, Sanghoon | - |
dc.contributor.nonIdAuthor | Kim, Joon-Yeon | - |
dc.contributor.nonIdAuthor | Kang, Taehee | - |
dc.contributor.nonIdAuthor | Bahk, Young-Mi | - |
dc.contributor.nonIdAuthor | Rhie, Jiyeah | - |
dc.contributor.nonIdAuthor | Kang, Bong Joo | - |
dc.contributor.nonIdAuthor | Kim, Yong Seung | - |
dc.contributor.nonIdAuthor | Park, Joohyun | - |
dc.contributor.nonIdAuthor | Kim, Won Tae | - |
dc.contributor.nonIdAuthor | Jeon, Hyeongtag | - |
dc.contributor.nonIdAuthor | Kim, Dai-Sik | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | terahertz nonlinearity | - |
dc.subject.keywordAuthor | quantum tunneling | - |
dc.subject.keywordAuthor | angstrom gap | - |
dc.subject.keywordAuthor | metal-insulator-metal | - |
dc.subject.keywordAuthor | graphene | - |
dc.subject.keywordAuthor | aluminum oxide | - |
dc.subject.keywordPlus | FIELD ENHANCEMENT | - |
dc.subject.keywordPlus | QUANTUM PLASMONICS | - |
dc.subject.keywordPlus | TUNNELING TIME | - |
dc.subject.keywordPlus | ELECTRON | - |
dc.subject.keywordPlus | HETEROSTRUCTURE | - |
dc.subject.keywordPlus | NANOSTRUCTURES | - |
dc.subject.keywordPlus | PHOTOEMISSION | - |
dc.subject.keywordPlus | RESONANCES | - |
dc.subject.keywordPlus | GENERATION | - |
dc.subject.keywordPlus | GRAPHENE | - |
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