Pacheco-Peña, VíctorMinin, Igor V.Minin, Oleg V.Beruete Díaz, Miguel2016-03-212016-03-2120162304-6732 (Electronic)10.3390/photonics3010010https://academica-e.unavarra.es/handle/2454/20309A 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 190, when the gap between the cuboids is 2.50. 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.application/pdfeng© 2016 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons by Attribution (CC-BY) license.Photonic nanojetsSurface plasmonsOptical waveguideDielectric waveguideTelecom wavelengthsinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccess