Bloch waves at the surface of a single-layer coating D-shaped photonic crystal fiber
Date
2020Version
Acceso abierto / Sarbide irekia
Type
Artículo / Artikulua
Version
Versión aceptada / Onetsi den bertsioa
Project Identifier
ES/1PE/TEC2016-78047-R
Impact
|
10.1364/OL.391508
Abstract
Bloch surface wave (BSW) platforms are particularly interesting for light confinement and surface sensitivity, as an alternative to the metal-based surface plasmon polaritons (SPP). However, most of the reported BSW platforms require depositing a large number of alternating dielectric layers to realize the excitation of the surface waves. In this Letter, we demonstrate an experimentally feasible ...
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Bloch surface wave (BSW) platforms are particularly interesting for light confinement and surface sensitivity, as an alternative to the metal-based surface plasmon polaritons (SPP). However, most of the reported BSW platforms require depositing a large number of alternating dielectric layers to realize the excitation of the surface waves. In this Letter, we demonstrate an experimentally feasible D-shaped photonic crystal fiber (PCF) platform consisting of only a single dielectric layer on its flat surface, which can sustain Bloch waves at the boundary between the dielectric layer and the PCF cladding. The presence of the dielectric layer modifies the local effective refractive index, enabling a direct manipulation of the BSWs. In addition, the D-shaped structure provides direct contact with the external medium for sensing applications with an ultrahigh sensing figure of merit (2451 RIU-1) and has the potential to be used over a wide range of analyte refractive indices. [--]
Subject
Effective refractive index,
Photonic bandgap fibers,
Photonic crystal fibers,
Surface plasmon polaritons,
Surface waves,
Total internal reflection
Publisher
Optical Society of America
Published in
Optics Letters, 2020, 45(9), 2547-2550
Departament
Universidad Pública de Navarra. Departamento de Ingeniería Eléctrica, Electrónica y de Comunicación /
Nafarroako Unibertsitate Publikoa. Ingeniaritza Elektrikoa, Elektronikoa eta Telekomunikazio Ingeniaritza Saila /
Universidad Pública de Navarra/Nafarroako Unibertsitate Publikoa. Institute of Smart Cities - ISC
Publisher version
Sponsorship
Universidad Nacional de Colombia (Hermes code 46509); Agencia Estatal de Investigación (AEI) and Fondo Europeo de Desarrollo Regional (TEC2016-78047-R).