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

In 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 cubo...

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Detalles Bibliográficos
Autores: Pacheco-Peña, Víctor, Minin, Igor V., Minin, Oleg V., Beruete Díaz, Miguel
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2016
País:España
Institución:Universidad Pública de Navarra
Repositorio:Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
OAI Identifier:oai:academica-e.unavarra.es:2454/38160
Acceso en línea:https://hdl.handle.net/2454/38160
Access Level:acceso abierto
Palabra clave:Photonic nanojets
Telecom wavelengths
Surface plasmons
SPP
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spelling Comprehensive analysis of photonic nanojets in 3D dielectric cuboids excited by surface plasmonsPacheco-Peña, VíctorMinin, Igor V.Minin, Oleg V.Beruete Díaz, MiguelPhotonic nanojetsTelecom wavelengthsSurface plasmonsSPPIn 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.This 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.WileyInstitute of Smart Cities - ISC2016info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttps://hdl.handle.net/2454/38160reponame:Academica-e. Repositorio Institucional de la Universidad Pública de Navarrainstname:Universidad Pública de NavarraInglésinfo:eu-repo/grantAgreement/MINECO//TEC2014-51902-C2-2-R© 2016 by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheiminfo:eu-repo/semantics/openAccessoai:academica-e.unavarra.es:2454/381602026-06-17T12:41:47Z
dc.title.none.fl_str_mv Comprehensive analysis of photonic nanojets in 3D dielectric cuboids excited by surface plasmons
title Comprehensive analysis of photonic nanojets in 3D dielectric cuboids excited by surface plasmons
spellingShingle Comprehensive analysis of photonic nanojets in 3D dielectric cuboids excited by surface plasmons
Pacheco-Peña, Víctor
Photonic nanojets
Telecom wavelengths
Surface plasmons
SPP
title_short Comprehensive analysis of photonic nanojets in 3D dielectric cuboids excited by surface plasmons
title_full Comprehensive analysis of photonic nanojets in 3D dielectric cuboids excited by surface plasmons
title_fullStr Comprehensive analysis of photonic nanojets in 3D dielectric cuboids excited by surface plasmons
title_full_unstemmed Comprehensive analysis of photonic nanojets in 3D dielectric cuboids excited by surface plasmons
title_sort Comprehensive analysis of photonic nanojets in 3D dielectric cuboids excited by surface plasmons
dc.creator.none.fl_str_mv Pacheco-Peña, Víctor
Minin, Igor V.
Minin, Oleg V.
Beruete Díaz, Miguel
author Pacheco-Peña, Víctor
author_facet Pacheco-Peña, Víctor
Minin, Igor V.
Minin, Oleg V.
Beruete Díaz, Miguel
author_role author
author2 Minin, Igor V.
Minin, Oleg V.
Beruete Díaz, Miguel
author2_role author
author
author
dc.contributor.none.fl_str_mv Institute of Smart Cities - ISC
dc.subject.none.fl_str_mv Photonic nanojets
Telecom wavelengths
Surface plasmons
SPP
topic Photonic nanojets
Telecom wavelengths
Surface plasmons
SPP
description In 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.
publishDate 2016
dc.date.none.fl_str_mv 2016
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2454/38160
url https://hdl.handle.net/2454/38160
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/MINECO//TEC2014-51902-C2-2-R
dc.rights.none.fl_str_mv © 2016 by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
info:eu-repo/semantics/openAccess
rights_invalid_str_mv © 2016 by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv reponame:Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
instname:Universidad Pública de Navarra
instname_str Universidad Pública de Navarra
reponame_str Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
collection Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
repository.name.fl_str_mv
repository.mail.fl_str_mv
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