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Article: Nonlinear infrared plasmonic waveguide arrays

TitleNonlinear infrared plasmonic waveguide arrays
Authors
Keywordsplasmonic waveguides
waveguide theory
waveguide arrays
nonlinear plasmonics
infrared plasmonics
Issue Date2016
Citation
Nano Research, 2016, v. 9, n. 1, p. 224-229 How to Cite?
Abstract© 2016, Tsinghua University Press and Springer-Verlag Berlin Heidelberg. The large negative permittivity of noble metals in the infrared region prevents the possibility of highly confined plasmons in simple waveguide structures such as thin films or rods. This is a critical obstacle to applications of nonlinear plasmonics in the telecommunication wavelength region. We theoretically propose and numerically demonstrate that such limitation can be overcome by exploiting inter-element coupling effects in a plasmonic waveguide array. The supermodes of a plasmonic array span a large range of effective indices, making these structures ideal for broadband mode-multiplexed interconnects for integrated photonic devices. We show such plasmonic waveguide arrays can significantly enhance nonlinear optical interactions when operating in a high-index, tightly bound supermode. For example, a third-order nonlinear coefficient in such a waveguide can be more than three orders of magnitude larger compared to silicon waveguides of similar dimensions. These findings open new design possibilities towards the application of plasmonics in integrated optical devices in the telecommunications spectral region.
Persistent Identifierhttp://hdl.handle.net/10722/256769
ISSN
2020 Impact Factor: 8.897
2020 SCImago Journal Rankings: 2.536
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorSalandrino, Alessandro-
dc.contributor.authorWang, Yuan-
dc.contributor.authorZhang, Xiang-
dc.date.accessioned2018-07-24T08:57:51Z-
dc.date.available2018-07-24T08:57:51Z-
dc.date.issued2016-
dc.identifier.citationNano Research, 2016, v. 9, n. 1, p. 224-229-
dc.identifier.issn1998-0124-
dc.identifier.urihttp://hdl.handle.net/10722/256769-
dc.description.abstract© 2016, Tsinghua University Press and Springer-Verlag Berlin Heidelberg. The large negative permittivity of noble metals in the infrared region prevents the possibility of highly confined plasmons in simple waveguide structures such as thin films or rods. This is a critical obstacle to applications of nonlinear plasmonics in the telecommunication wavelength region. We theoretically propose and numerically demonstrate that such limitation can be overcome by exploiting inter-element coupling effects in a plasmonic waveguide array. The supermodes of a plasmonic array span a large range of effective indices, making these structures ideal for broadband mode-multiplexed interconnects for integrated photonic devices. We show such plasmonic waveguide arrays can significantly enhance nonlinear optical interactions when operating in a high-index, tightly bound supermode. For example, a third-order nonlinear coefficient in such a waveguide can be more than three orders of magnitude larger compared to silicon waveguides of similar dimensions. These findings open new design possibilities towards the application of plasmonics in integrated optical devices in the telecommunications spectral region.-
dc.languageeng-
dc.relation.ispartofNano Research-
dc.subjectplasmonic waveguides-
dc.subjectwaveguide theory-
dc.subjectwaveguide arrays-
dc.subjectnonlinear plasmonics-
dc.subjectinfrared plasmonics-
dc.titleNonlinear infrared plasmonic waveguide arrays-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1007/s12274-016-0994-0-
dc.identifier.scopuseid_2-s2.0-84956942428-
dc.identifier.volume9-
dc.identifier.issue1-
dc.identifier.spage224-
dc.identifier.epage229-
dc.identifier.eissn1998-0000-
dc.identifier.isiWOS:000371797800019-
dc.identifier.issnl1998-0000-

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