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Article: Interacting dark resonances with plasmonic meta-molecules

TitleInteracting dark resonances with plasmonic meta-molecules
Authors
Issue Date2014
PublisherAIP Publishing LLC. The Journal's web site is located at http://apl.aip.org/
Citation
Applied Physics Letters, 2014, v. 105 n. 11, article no. 111109 How to Cite?
Abstract© 2014 AIP Publishing LLC. Dark state physics has led to a variety of remarkable phenomena in atomic physics, quantum optics, and information theory. Here, we investigate interacting dark resonance type physics in multi-layered plasmonic meta-molecules. We theoretically demonstrate that these plasmonic meta-molecules exhibit sub-natural spectral response, analogous to conventional atomic four-level configuration, by manipulating the evanescent coupling between the bright and dark elements (plasmonic atoms). Using cascaded coupling, we show nearly 4-fold reduction in linewidth of the hybridized resonance compared to a resonantly excited single bright plasmonic atom with same absorbance. In addition, we engineered the geometry of the meta-molecules to realize efficient intramolecular excitation transfer with nearly 80%, on resonant excitation, of the total absorption being localized at the second dark plasmonic atom. An analytical description of the spectral response of the structure is presented with full electrodynamics simulations to corroborate our results. Such multilayered meta-molecules can bring a new dimension to higher quality factor plasmonic resonance, efficient excitation transfer, wavelength demultiplexing, and enhanced non-linearity at nanoscale.
Persistent Identifierhttp://hdl.handle.net/10722/256686
ISSN
2017 Impact Factor: 3.495
2015 SCImago Journal Rankings: 1.105
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorJha, Pankaj K.-
dc.contributor.authorMrejen, Michael-
dc.contributor.authorKim, Jeongmin-
dc.contributor.authorWu, Chihhui-
dc.contributor.authorYin, Xiaobo-
dc.contributor.authorWang, Yuan-
dc.contributor.authorZhang, Xiang-
dc.date.accessioned2018-07-24T08:57:36Z-
dc.date.available2018-07-24T08:57:36Z-
dc.date.issued2014-
dc.identifier.citationApplied Physics Letters, 2014, v. 105 n. 11, article no. 111109-
dc.identifier.issn0003-6951-
dc.identifier.urihttp://hdl.handle.net/10722/256686-
dc.description.abstract© 2014 AIP Publishing LLC. Dark state physics has led to a variety of remarkable phenomena in atomic physics, quantum optics, and information theory. Here, we investigate interacting dark resonance type physics in multi-layered plasmonic meta-molecules. We theoretically demonstrate that these plasmonic meta-molecules exhibit sub-natural spectral response, analogous to conventional atomic four-level configuration, by manipulating the evanescent coupling between the bright and dark elements (plasmonic atoms). Using cascaded coupling, we show nearly 4-fold reduction in linewidth of the hybridized resonance compared to a resonantly excited single bright plasmonic atom with same absorbance. In addition, we engineered the geometry of the meta-molecules to realize efficient intramolecular excitation transfer with nearly 80%, on resonant excitation, of the total absorption being localized at the second dark plasmonic atom. An analytical description of the spectral response of the structure is presented with full electrodynamics simulations to corroborate our results. Such multilayered meta-molecules can bring a new dimension to higher quality factor plasmonic resonance, efficient excitation transfer, wavelength demultiplexing, and enhanced non-linearity at nanoscale.-
dc.languageeng-
dc.publisherAIP Publishing LLC. The Journal's web site is located at http://apl.aip.org/-
dc.relation.ispartofApplied Physics Letters-
dc.titleInteracting dark resonances with plasmonic meta-molecules-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1063/1.4896035-
dc.identifier.scopuseid_2-s2.0-84907476981-
dc.identifier.volume105-
dc.identifier.issue11-
dc.identifier.spagearticle no. 111109-
dc.identifier.epagearticle no. 111109-
dc.identifier.isiWOS:000342995800010-

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