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dc.contributor.authorRahman, Atta Ur
dc.contributor.authorGeng, Junping
dc.contributor.authorZiolkowski, Richard W.
dc.contributor.authorHang, Tao
dc.contributor.authorHayat, Qaisar
dc.contributor.authorLiang, Xianling
dc.contributor.authorRehman, Sami Ur
dc.contributor.authorJin, Ronghong
dc.date.accessioned2019-09-27T00:33:43Z
dc.date.available2019-09-27T00:33:43Z
dc.date.issued2019-07-26
dc.identifier.citationRahman, A.U.; Geng, J.; Ziolkowski, R.W.; Hang, T.; Hayat, Q.; Liang, X.; Rehman, S.U.; Jin, R. Photoluminescence Revealed Higher Order Plasmonic Resonance Modes and Their Unexpected Frequency Blue Shifts in Silver-Coated Silica Nanoparticle Antennas. Appl. Sci. 2019, 9, 3000.en_US
dc.identifier.issn2076-3417
dc.identifier.doi10.3390/app9153000
dc.identifier.urihttp://hdl.handle.net/10150/634618
dc.description.abstractFeatured Application Core-shell nanoparticle antennas facilitate the realization of optical metamaterials (engineered artificial materials). Their presence and tunable scattering properties enhance a variety of biological sensing and imaging modalities. Abstract Higher order plasmonic resonance modes and their frequency blue shifts in silver-coated silica nanoparticle antennas are studied. Synthesizing them with a wet chemistry method, silica (SiO2) nanoparticles were enclosed within silver shells with different thicknesses. A size-dependent Drude model was used to model the plasmonic shells and their optical losses. Two higher order plasmonic resonances were identified for each case in these simulations. The photoluminescence spectroscopy (PL) experimental results, in good agreement with their simulated values, confirmed the presence of those two higher order resonant modes and their resonance frequencies. When compared with pure metallic Ag nanoparticles, size-induced blue shifts were observed in these resonance frequencies.en_US
dc.description.sponsorshipNational Natural Science Foundation of China [61571289, 61571298]; Australian Research Council [DP160102219]en_US
dc.language.isoenen_US
dc.publisherMDPIen_US
dc.rightsCopyright © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).en_US
dc.subjectcore-shell nanoparticleen_US
dc.subjectnanoantennaen_US
dc.subjectblue shiften_US
dc.subjecthigher order modesen_US
dc.subjectsize-dependent optical lossesen_US
dc.titlePhotoluminescence Revealed Higher Order Plasmonic Resonance Modes and Their Unexpected Frequency Blue Shifts in Silver-Coated Silica Nanoparticle Antennasen_US
dc.typeArticleen_US
dc.contributor.departmentUniv Arizona, Dept Elect & Comp Engnen_US
dc.identifier.journalAPPLIED SCIENCES-BASELen_US
dc.description.noteOpen access journalen_US
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.en_US
dc.eprint.versionFinal published versionen_US
dc.source.volume9
dc.source.issue15
dc.source.beginpage3000
refterms.dateFOA2019-09-27T00:33:44Z


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