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DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 1037 | - |
dc.citation.number | 3 | - |
dc.citation.startPage | 1030 | - |
dc.citation.title | NANOSCALE | - |
dc.citation.volume | 10 | - |
dc.contributor.author | Kim, Yun-Tae | - |
dc.contributor.author | Min, Hyegi | - |
dc.contributor.author | Lee, Junghyun | - |
dc.contributor.author | Park, Hyesung | - |
dc.contributor.author | Lee, Chang Young | - |
dc.date.accessioned | 2023-12-21T21:16:02Z | - |
dc.date.available | 2023-12-21T21:16:02Z | - |
dc.date.created | 2017-12-19 | - |
dc.date.issued | 2018-01 | - |
dc.description.abstract | Polarized Raman spectroscopy of a single-walled carbon nanotube (SWNT) was shown to serve as a simple alternative to sophisticated imaging tools for probing sub-diffraction optical phenomena. As a model system, we used TiO2 nanoparticle (n ~ 2.67), which confines plane-polarized incident light (λ = 523 nm) into two bands less than 150 nm apart. After depositing the nanoparticles onto SWNTs and measuring the nanoparticle-SWNT distance, Raman spectra of individual SWNTs were collected with the excitation laser polarized either parallel (θ = 0o) or perpendicular (θ = 90o) to the nanotubes. Only at θ = 90o did the spectral intensity increase by the nanoparticle, with the degree of enhancement greater when the nanotube was located farther from the particle-substrate contact. Finite-difference time-domain simulations explained that such enhancement at θ = 90o was a sub-diffraction phenomenon, which occurred when the nanotubes were located within one of the two confined bands formed by the TiO2 nanoparticle. Repeating the measurements on a two-dimensional graphene sheet only diminished Raman scattering of the graphene with no polarization dependence, confirming the advantage of one-dimensional nanostructure for studying sub-diffraction optics. | - |
dc.identifier.bibliographicCitation | NANOSCALE, v.10, no.3, pp.1030 - 1037 | - |
dc.identifier.doi | 10.1039/C7NR06543D | - |
dc.identifier.issn | 2040-3364 | - |
dc.identifier.scopusid | 2-s2.0-85040907173 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/23115 | - |
dc.identifier.url | http://pubs.rsc.org/en/content/articlelanding/2017/nr/c7nr06543d#!divAbstract | - |
dc.identifier.wosid | 000423259000017 | - |
dc.language | 영어 | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.title | Probing sub-diffraction optical confinement via the polarized Raman spectroscopy of a single-walled carbon nanotube | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied | - |
dc.relation.journalResearchArea | Chemistry; Science & Technology - Other Topics; Materials Science; Physics | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | DIELECTRIC MICROSPHERE | - |
dc.subject.keywordPlus | SCATTERING | - |
dc.subject.keywordPlus | ENHANCEMENT | - |
dc.subject.keywordPlus | MICROSCOPY | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | MOLECULES | - |
dc.subject.keywordPlus | SUBSTRATE | - |
dc.subject.keywordPlus | ARRAYS | - |
dc.subject.keywordPlus | FLOW | - |
dc.subject.keywordPlus | PHOTONIC NANOJET | - |
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