DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Nayeun | ko |
dc.contributor.author | Kim, Reehyang | ko |
dc.contributor.author | Kim, Ju Young | ko |
dc.contributor.author | Ko, Jong Beom | ko |
dc.contributor.author | Park, Sang-Hee Ko | ko |
dc.contributor.author | Kim, Sang Ouk | ko |
dc.contributor.author | Brongersma, Mark L. | ko |
dc.contributor.author | Shin, Jonghwa | ko |
dc.date.accessioned | 2021-07-19T06:30:09Z | - |
dc.date.available | 2021-07-19T06:30:09Z | - |
dc.date.created | 2021-07-19 | - |
dc.date.created | 2021-07-19 | - |
dc.date.issued | 2021-06 | - |
dc.identifier.citation | ACS PHOTONICS, v.8, no.6, pp.1616 - 1622 | - |
dc.identifier.issn | 2330-4022 | - |
dc.identifier.uri | http://hdl.handle.net/10203/286728 | - |
dc.description.abstract | Concentration of electromagnetic waves in deep-subwavelength volumes has been widely investigated as a direct way of enhancing light-matter interactions. However, a homogeneous array of subwavelength nanogaps suitable for visible light localization and enhancement is difficult to realize due to the limitations of conventional lithography techniques. Here, a uniform array of ultrasmall plasmonic resonators with precisely controlled nanogaps ("nano-lotus pods") is presented for the visible light confinement and realized without any photo- or beam-based lithography steps. The unit motif of this metasurface with a physical volume of 52 x 60 x 40 nm(3) is designed to resonantly trap visible light into an effective mode volume of 1.57 x 10(-5) lambda(3)(0). Each nano-lotus pod can be considered as a curved metal-insulator-metal waveguide which exposes both of its end faces and thus hot spots with the strongest electric fields on the outermost flat surface. To realize this unique nanostructure, a template-stripping method is employed in conjunction with block copolymer self-assembly and atomic layer deposition which guarantee a homogeneous array over large areas. It is experimentally demonstrated that the proposed metasurface can be used as a highly uniform and flat substrate for surface-enhanced Raman spectroscopy of various analytes, especially a stiff two-dimensional material. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Self-Assembled Nano-Lotus Pod Metasurface for Light Trapping | - |
dc.type | Article | - |
dc.identifier.wosid | 000664306400013 | - |
dc.identifier.scopusid | 2-s2.0-85108086336 | - |
dc.type.rims | ART | - |
dc.citation.volume | 8 | - |
dc.citation.issue | 6 | - |
dc.citation.beginningpage | 1616 | - |
dc.citation.endingpage | 1622 | - |
dc.citation.publicationname | ACS PHOTONICS | - |
dc.identifier.doi | 10.1021/acsphotonics.0c01882 | - |
dc.contributor.localauthor | Park, Sang-Hee Ko | - |
dc.contributor.localauthor | Kim, Sang Ouk | - |
dc.contributor.localauthor | Shin, Jonghwa | - |
dc.contributor.nonIdAuthor | Lee, Nayeun | - |
dc.contributor.nonIdAuthor | Kim, Ju Young | - |
dc.contributor.nonIdAuthor | Brongersma, Mark L. | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | metasurface | - |
dc.subject.keywordAuthor | mode volume | - |
dc.subject.keywordAuthor | surface-enhanced Raman spectroscopy | - |
dc.subject.keywordAuthor | plasmonics | - |
dc.subject.keywordAuthor | nanogap | - |
dc.subject.keywordPlus | RAMAN-SCATTERING | - |
dc.subject.keywordPlus | GRAPHENE OXIDE | - |
dc.subject.keywordPlus | LITHOGRAPHY | - |
dc.subject.keywordPlus | ARRAYS | - |
dc.subject.keywordPlus | SERS | - |
dc.subject.keywordPlus | SPECTROSCOPY | - |
dc.subject.keywordPlus | ENHANCEMENT | - |
dc.subject.keywordPlus | PLASMONICS | - |
dc.subject.keywordPlus | DENSITY | - |
dc.subject.keywordPlus | FILMS | - |
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