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Photonics 2016, 3(1), 10; doi:10.3390/photonics3010010

Increasing Surface Plasmons Propagation via Photonic Nanojets with Periodically Spaced 3D Dielectric Cuboids

1
Antennas Group-TERALAB, Public University of Navarra, Campus de Arrosadía, 31006 Pamplona, Spain
2
National Research Tomsk State University, Lenina Ave. 36, Tomsk 634050, Russia
3
Institute of Smart Cities, University of Navarra, Campus de Arrosadía, 31006 Pamplona, Spain
*
Author to whom correspondence should be addressed.
Received: 28 February 2016 / Revised: 16 March 2016 / Accepted: 17 March 2016 / Published: 21 March 2016
(This article belongs to the Special Issue 3D- and 2D-Nanofabrication for Photonic Devices)
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Abstract

A structure based on periodically arranged 3D dielectric cuboids connected by photonic nanojets (PNJs) is proposed with the aim of increasing the propagation distance of surface plasmon polaritons (SPPs) at the telecom wavelength of 1550 nm. The performance of the structure is evaluated and compared with the case without the cuboids demonstrating that the SPPs propagation length is enhanced by a factor greater than 2, reaching a value of approximately 19λ0, when the gap between the cuboids is 2.5λ0. Also, the dependence of the propagation length with the height of the cubes is evaluated, showing that this parameter is critical for a good performance of the chain. A subwavelength resolution is obtained for all the jets generated at the output of the cuboids. View Full-Text
Keywords: photonic nanojets; surface plasmons; optical waveguide; dielectric waveguide; telecom wavelengths photonic nanojets; surface plasmons; optical waveguide; dielectric waveguide; telecom wavelengths
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Pacheco-Peña, V.; Minin, I.V.; Minin, O.V.; Beruete, M. Increasing Surface Plasmons Propagation via Photonic Nanojets with Periodically Spaced 3D Dielectric Cuboids. Photonics 2016, 3, 10.

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