Tunable Lattice Coupling of Multipole Plasmon Modes and Near-Field Enhancement in Closely Spaced Gold Nanorod Arrays

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dc.citation.articleNumber23159en_US
dc.citation.journalTitleScientific Reportsen_US
dc.citation.volumeNumber6en_US
dc.contributor.authorHuang, Yuen_US
dc.contributor.authorZhang, Xianen_US
dc.contributor.authorRinge, Emilieen_US
dc.contributor.authorHou, Mengjingen_US
dc.contributor.authorMa, Lingweien_US
dc.contributor.authorZhang, Zhengjunen_US
dc.date.accessioned2016-06-27T17:03:14Zen_US
dc.date.available2016-06-27T17:03:14Zen_US
dc.date.issued2016en_US
dc.description.abstractConsidering the nanogap and lattice effects, there is an attractive structure in plasmonics: closely spaced metallic nanoarrays. In this work, we demonstrate experimentally and theoretically the lattice coupling of multipole plasmon modes for closely spaced gold nanorod arrays, offering a new insight into the higher order cavity modes coupled with each other in the lattice. The resonances can be greatly tuned by changes in inter-rod gaps and nanorod heights while the influence of the nanorod diameter is relatively insignificant. Experimentally, pronounced suppressions of the reflectance are observed. Meanwhile, the near-field enhancement can be further enhanced, as demonstrated through surface enhanced Raman scattering (SERS). We then confirm the correlation between the near-field and far-field plasmonic responses, which is significantly important for maximizing the near-field enhancement at a specific excitation wavelength. This lattice coupling of multipole plasmon modes is of broad interest not only for SERS but also for other plasmonic applications, such as subwavelength imaging or metamaterials.en_US
dc.identifier.citationHuang, Yu, Zhang, Xian, Ringe, Emilie, et al.. "Tunable Lattice Coupling of Multipole Plasmon Modes and Near-Field Enhancement in Closely Spaced Gold Nanorod Arrays." <i>Scientific Reports,</i> 6, (2016) Nature Publishing Group: http://dx.doi.org/10.1038/srep23159.en_US
dc.identifier.doihttp://dx.doi.org/10.1038/srep23159en_US
dc.identifier.urihttps://hdl.handle.net/1911/90591en_US
dc.language.isoengen_US
dc.publisherNature Publishing Groupen_US
dc.rightsThis work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the articleﾒs Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material.en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.titleTunable Lattice Coupling of Multipole Plasmon Modes and Near-Field Enhancement in Closely Spaced Gold Nanorod Arraysen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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