Journal
OPTICAL FIBER TECHNOLOGY
Volume 33, Issue -, Pages 83-88Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.yofte.2016.11.010
Keywords
Optical fiber sensor; Refractive index sensor; D-type photonic crystal fiber; Surface plasmon resonance; Metamaterials; COMSOL multiphysics
Funding
- FCT Fundacao para a Ciencia e a Tecnologia (Portuguese Foundation for Science and Technology) [SFRH/BD/85068/2012, UID/EEA/50014/2013]
- ERDF - European Regional Development Fund through the Operational Programme for Competitiveness and Internationalisation - COMPETE Programme [POCI-01-0145-FEDER-006961]
- Fundação para a Ciência e a Tecnologia [SFRH/BD/85068/2012] Funding Source: FCT
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Using the finite element method (FEM), this paper presents a numerical investigation of the performance analysis of a D-type photonic crystal fiber (D-type PCF) for refractive index sensing, based on surface plasmon resonance (SPR) with a planar structure made out of a metamaterial. COMSOL Multiphysics was used to evaluate the design of the referred refractive index optical fiber sensor, with higher accuracy and considerable economy of time and resources. A study of different metamaterials concentrations conformed by aluminum oxide (Al2O3) and silver (Ag) is carried out. Another structural parameters, which influences the refractive index sensor performance, the thickness of the metamaterial, is also investigated. The results indicate that the use of metamaterials provides a way of improving the performance of SPR sensors on optical fibers and allows to tailor the working parameters of the sensor. (C) 2016 Elsevier Inc. All rights reserved.
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