https://scholars.lib.ntu.edu.tw/handle/123456789/425046
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | Lin S.-C. | en_US |
dc.contributor.author | Hatab N.A. | en_US |
dc.contributor.author | Gu B. | en_US |
dc.contributor.author | Chao B.-K. | en_US |
dc.contributor.author | JIA-HAN LI | en_US |
dc.contributor.author | CHUN-HWAY HSUEH | en_US |
dc.creator | Hsueh C.-H.;Li J.-H.;Chao B.-K.;Gu B.;Hatab N.A.;Lin S.-C.;CHUN-HWAY HSUEH | - |
dc.date.accessioned | 2019-09-25T04:14:17Z | - |
dc.date.available | 2019-09-25T04:14:17Z | - |
dc.date.issued | 2016 | - |
dc.identifier.issn | 09478396 | - |
dc.identifier.uri | https://scholars.lib.ntu.edu.tw/handle/123456789/425046 | - |
dc.description.abstract | The purpose of this work is to present a surface-enhanced Raman scattering (SERS) amplifying antenna for the possible usage in the near-infrared region. Instead of the visible-light range amplifying antenna such as a bowtie, the finite-difference time-domain (FDTD) simulation results indicate that elliptical antenna could provide large electromagnetic field enhancement at near-infrared wavelength by combining the free-standing enhancement property with large aspect ratios of the ellipse geometry. The simulation results consist with the enhancement factors characterized by SERS measurements at the excited wavelength of 785?nm for different aspect ratios and periodicities. In addition to the redshift of the resonance wavelength as the aspect ratio of ellipse increases, the free-standing structure modifies the resonance behavior and the dielectric environment of antenna by elevating the elliptical disk from the substrate. To interpret the simulation results, the analytical solution of resonance wavelength for ellipsoid dimmer is derived based on Lorentz¡VMie theory, and comparisons are made between the analytical solution and simulation results. The quasi-static analytical solution provides a way to characterize the resonance behavior of two ellipsoid particles as a function of the gap distance, aspect ratio, and dielectric environment. The electrodynamic analysis for the periodic structure was performed in our FDTD simulations. ? 2016, Springer-Verlag Berlin Heidelberg. | - |
dc.language | English | - |
dc.relation.ispartof | Applied Physics A: Materials Science and Processing | - |
dc.title | Free-standing gold elliptical nanoantenna with tunable wavelength in near-infrared region for enhanced Raman spectroscopy | en_US |
dc.type | journal article | en |
dc.identifier.doi | 10.1007/s00339-016-0168-7 | - |
dc.identifier.scopus | 2-s2.0-84975883321 | - |
dc.identifier.url | https://www2.scopus.com/inward/record.uri?eid=2-s2.0-84975883321&doi=10.1007%2fs00339-016-0168-7&partnerID=40&md5=7482b78b533d3205f4472060b6a5cdbb | - |
dc.relation.journalvolume | 122 | - |
dc.relation.journalissue | 7 | - |
item.openairecristype | http://purl.org/coar/resource_type/c_6501 | - |
item.openairetype | journal article | - |
item.grantfulltext | none | - |
item.cerifentitytype | Publications | - |
item.fulltext | no fulltext | - |
crisitem.author.dept | Engineering Science and Ocean Engineering | - |
crisitem.author.dept | Materials Science and Engineering | - |
crisitem.author.orcid | 0000-0002-6477-7148 | - |
crisitem.author.parentorg | College of Engineering | - |
crisitem.author.parentorg | College of Engineering | - |
顯示於: | 材料科學與工程學系 |
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