Comprehensive analysis of photonic nanojets in 3D dielectric cuboids excited by surface plasmons

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dc.contributor.authorPacheco-Peña, Víctor
dc.contributor.authorMinin, Igor V.
dc.contributor.authorMinin, Oleg V.
dc.contributor.authorBeruete Díaz, Miguel
dc.contributor.departmentInstitute of Smart Cities - ISCen
dc.date.accessioned2020-09-22T07:53:12Z
dc.date.available2020-09-22T07:53:12Z
dc.date.issued2016
dc.description.abstractIn this paper we study the excitation of photonic nanojets (PNJ) in 3D dielectric cuboids by surface plasmons at telecommunication wavelengths. The analysis is done using the effective refractive index approach. It is shown that the refractive index contrast between the regions with and without cuboid should be roughly less than 2 in order to generate jets at the output of the cuboid. The best performance at λ0 = 1550 nm is obtained when the height of the cuboid is 160 nm producing a jet just at the output interface with a subwavelength resolution of 0.68λ0 and a high intensity enhancement (×5) at the focus. The multi‐wavelength response is also studied demonstrating that it is possible to use the proposed structure at different wavelengths. Finally, the backscattering enhancement is numerically evaluated by inserting a metal particle within the PNJ region, demonstrating a maximum value of ∼2.44 dB for a gold sphere of radius 0.1λ0.en
dc.description.sponsorshipThis work was supported by the Spanish Ministerio de Economía y Competitividad under contract TEC2014‐51902‐C2‐2‐R and partially was supported by the Mendeleev scientific fund of Tomsk State University № 8.2.48.2015. V.P.‐P. is sponsored by Spanish Ministerio de Educación, Cultura y Deporte under grant FPU AP‐2012‐3796. M.B. is sponsored by the Spanish Government via RYC‐2011‐08221.en
dc.format.extent26 p.
dc.format.mimetypeapplication/pdfen
dc.identifier.doi10.1002/andp.201600098
dc.identifier.issn1521-3889
dc.identifier.urihttps://academica-e.unavarra.es/handle/2454/38160
dc.language.isoengen
dc.publisherWileyen
dc.relation.ispartofAnnalen der Physik, 2016, 528(9-10), 684-692en
dc.relation.projectIDinfo:eu-repo/grantAgreement/MINECO//TEC2014-51902-C2-2-R/ES/
dc.relation.publisherversionhttps://doi.org/10.1002/andp.201600098
dc.rights© 2016 by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheimen
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.subjectPhotonic nanojetsen
dc.subjectTelecom wavelengthsen
dc.subjectSurface plasmonsen
dc.subjectSPPen
dc.titleComprehensive analysis of photonic nanojets in 3D dielectric cuboids excited by surface plasmonsen
dc.typeinfo:eu-repo/semantics/article
dc.type.versioninfo:eu-repo/semantics/acceptedVersion
dspace.entity.typePublication
relation.isAuthorOfPublication7f0a4bcb-4ee3-4161-b562-8b0e0bfddd52
relation.isAuthorOfPublication6853cbd8-0a88-42ab-b165-c51b99cb6353
relation.isAuthorOfPublication.latestForDiscovery7f0a4bcb-4ee3-4161-b562-8b0e0bfddd52

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