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Article: Optically Thin Metallic Films for High-Radiative-Efficiency Plasmonics

TitleOptically Thin Metallic Films for High-Radiative-Efficiency Plasmonics
Authors
Keywordslight scattering
metallic thin film
nanoparticles
optical nanoantennas
radiative efficiency
spontaneous emission
Issue Date2016
Citation
Nano Letters, 2016, v. 16, n. 7, p. 4110-4117 How to Cite?
AbstractPlasmonics enables deep-subwavelength concentration of light and has become important for fundamental studies as well as real-life applications. Two major existing platforms of plasmonics are metallic nanoparticles and metallic films. Metallic nanoparticles allow efficient coupling to far field radiation, yet their synthesis typically leads to poor material quality. Metallic films offer substantially higher quality materials, but their coupling to radiation is typically jeopardized due to the large momentum mismatch with free space. Here, we propose and theoretically investigate optically thin metallic films as an ideal platform for high-radiative-efficiency plasmonics. For far-field scattering, adding a thin high-quality metallic substrate enables a higher quality factor while maintaining the localization and tunability that the nanoparticle provides. For near-field spontaneous emission, a thin metallic substrate, of high quality or not, greatly improves the field overlap between the emitter environment and propagating surface plasmons, enabling high-Purcell (total enhancement >104), high-quantum-yield (>50%) spontaneous emission, even as the gap size vanishes (3-5 nm). The enhancement has almost spatially independent efficiency and does not suffer from quenching effects that commonly exist in previous structures.
Persistent Identifierhttp://hdl.handle.net/10722/317028
ISSN
2023 Impact Factor: 9.6
2023 SCImago Journal Rankings: 3.411
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorYang, Yi-
dc.contributor.authorZhen, Bo-
dc.contributor.authorHsu, Chia Wei-
dc.contributor.authorMiller, Owen D.-
dc.contributor.authorJoannopoulos, John D.-
dc.contributor.authorSoljačić, Marin-
dc.date.accessioned2022-09-19T06:18:38Z-
dc.date.available2022-09-19T06:18:38Z-
dc.date.issued2016-
dc.identifier.citationNano Letters, 2016, v. 16, n. 7, p. 4110-4117-
dc.identifier.issn1530-6984-
dc.identifier.urihttp://hdl.handle.net/10722/317028-
dc.description.abstractPlasmonics enables deep-subwavelength concentration of light and has become important for fundamental studies as well as real-life applications. Two major existing platforms of plasmonics are metallic nanoparticles and metallic films. Metallic nanoparticles allow efficient coupling to far field radiation, yet their synthesis typically leads to poor material quality. Metallic films offer substantially higher quality materials, but their coupling to radiation is typically jeopardized due to the large momentum mismatch with free space. Here, we propose and theoretically investigate optically thin metallic films as an ideal platform for high-radiative-efficiency plasmonics. For far-field scattering, adding a thin high-quality metallic substrate enables a higher quality factor while maintaining the localization and tunability that the nanoparticle provides. For near-field spontaneous emission, a thin metallic substrate, of high quality or not, greatly improves the field overlap between the emitter environment and propagating surface plasmons, enabling high-Purcell (total enhancement >104), high-quantum-yield (>50%) spontaneous emission, even as the gap size vanishes (3-5 nm). The enhancement has almost spatially independent efficiency and does not suffer from quenching effects that commonly exist in previous structures.-
dc.languageeng-
dc.relation.ispartofNano Letters-
dc.subjectlight scattering-
dc.subjectmetallic thin film-
dc.subjectnanoparticles-
dc.subjectoptical nanoantennas-
dc.subjectradiative efficiency-
dc.subjectspontaneous emission-
dc.titleOptically Thin Metallic Films for High-Radiative-Efficiency Plasmonics-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/acs.nanolett.6b00853-
dc.identifier.scopuseid_2-s2.0-84978768125-
dc.identifier.volume16-
dc.identifier.issue7-
dc.identifier.spage4110-
dc.identifier.epage4117-
dc.identifier.eissn1530-6992-
dc.identifier.isiWOS:000379794200022-

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