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Article: Resonance Coupling in Silicon Nanosphere-J-Aggregate Heterostructures

TitleResonance Coupling in Silicon Nanosphere-J-Aggregate Heterostructures
Authors
Keywordsresonance coupling
Silicon nanospheres
magnetic resonances
J-aggregates
excitons
Issue Date2016
Citation
Nano Letters, 2016, v. 16, n. 11, p. 6886-6895 How to Cite?
Abstract© 2016 American Chemical Society.Due to their optical magnetic and electric resonances associated with the high refractive index, dielectric silicon nanoparticles have been explored as novel nanocavities that are excellent candidates for enhancing various light-matter interactions at the nanoscale. Here, from both of theoretical and experimental aspects, we explored resonance coupling between excitons and magnetic/electric resonances in heterostructures composed of the silicon nanoparticle coated with a molecular J-aggregate shell. The resonance coupling was originated from coherent energy transfer between the exciton and magnetic/electric modes, which was manifested by quenching dips on the scattering spectrum due to formation of hybrid modes. The influences of various parameters, including the molecular oscillation strength, molecular absorption line width, molecular shell thickness, refractive index of the surrounding environment, and separation between the core and shell, on the resonance coupling behaviors were scrutinized. In particular, the resonance coupling can approach the strong coupling regime by choosing appropriate molecular parameters, where an anticrossing behavior with a mode splitting of 100 meV was observed on the energy diagram. Most interestingly, the hybrid modes in such dielectric heterostructure can exhibit unidirectional light scattering behaviors, which cannot be achieved by those in plexcitonic nanoparticle composed of a metal nanoparticle core and a molecular shell.
Persistent Identifierhttp://hdl.handle.net/10722/236634
ISSN
2023 Impact Factor: 9.6
2023 SCImago Journal Rankings: 3.411
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWang, Hao-
dc.contributor.authorKe, Yanlin-
dc.contributor.authorXu, Ningsheng-
dc.contributor.authorZhan, Runze-
dc.contributor.authorZheng, Zebo-
dc.contributor.authorWen, Jinxiu-
dc.contributor.authorYan, Jiahao-
dc.contributor.authorLiu, Pu-
dc.contributor.authorChen, Jun-
dc.contributor.authorShe, Juncong-
dc.contributor.authorZhang, Yu-
dc.contributor.authorLiu, Fei-
dc.contributor.authorChen, Huanjun-
dc.contributor.authorDeng, Shaozhi-
dc.date.accessioned2016-12-01T09:08:28Z-
dc.date.available2016-12-01T09:08:28Z-
dc.date.issued2016-
dc.identifier.citationNano Letters, 2016, v. 16, n. 11, p. 6886-6895-
dc.identifier.issn1530-6984-
dc.identifier.urihttp://hdl.handle.net/10722/236634-
dc.description.abstract© 2016 American Chemical Society.Due to their optical magnetic and electric resonances associated with the high refractive index, dielectric silicon nanoparticles have been explored as novel nanocavities that are excellent candidates for enhancing various light-matter interactions at the nanoscale. Here, from both of theoretical and experimental aspects, we explored resonance coupling between excitons and magnetic/electric resonances in heterostructures composed of the silicon nanoparticle coated with a molecular J-aggregate shell. The resonance coupling was originated from coherent energy transfer between the exciton and magnetic/electric modes, which was manifested by quenching dips on the scattering spectrum due to formation of hybrid modes. The influences of various parameters, including the molecular oscillation strength, molecular absorption line width, molecular shell thickness, refractive index of the surrounding environment, and separation between the core and shell, on the resonance coupling behaviors were scrutinized. In particular, the resonance coupling can approach the strong coupling regime by choosing appropriate molecular parameters, where an anticrossing behavior with a mode splitting of 100 meV was observed on the energy diagram. Most interestingly, the hybrid modes in such dielectric heterostructure can exhibit unidirectional light scattering behaviors, which cannot be achieved by those in plexcitonic nanoparticle composed of a metal nanoparticle core and a molecular shell.-
dc.languageeng-
dc.relation.ispartofNano Letters-
dc.subjectresonance coupling-
dc.subjectSilicon nanospheres-
dc.subjectmagnetic resonances-
dc.subjectJ-aggregates-
dc.subjectexcitons-
dc.titleResonance Coupling in Silicon Nanosphere-J-Aggregate Heterostructures-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/acs.nanolett.6b02759-
dc.identifier.scopuseid_2-s2.0-84994707443-
dc.identifier.volume16-
dc.identifier.issue11-
dc.identifier.spage6886-
dc.identifier.epage6895-
dc.identifier.eissn1530-6992-
dc.identifier.isiWOS:000387625000026-
dc.identifier.issnl1530-6984-

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