Title :
SPR Microstructured D-Type Optical Fiber Sensor Configuration for Refractive Index Measurement
Author :
Santos, Diego Felipe ; Guerreiro, Ariel ; Baptista, Jose Manuel
Author_Institution :
Centro de Competencia de Cienc. Exatas e da Eng., Univ. da Madeira, Funchal, Portugal
Abstract :
This paper presents the performance analysis of a sensing configuration of refractive index, based on surface plasmon resonance (SPR) in microstructured D-type optical fiber with a thin gold layer, using the finite-element method. The configuration is analyzed in terms of the loss and distribution Poynting vector. The results are compared with a conventional SPR D-type optical fiber sensor for refractive index measurement. The simulation results show an improvement of the sensitivity and resolution (10 × 103 nm/RIU and 9.8 × 10-6 RIU, respectively, when considering an accurately spectral variation detection of 0.1 nm).
Keywords :
fibre optic sensors; finite element analysis; gold; holey fibres; micro-optics; optical fibre losses; refractive index measurement; surface plasmon resonance; thin film sensors; Au; SPR microstructured D-type optical fiber sensor configuration; distribution Poynting vector; finite element method; loss; refractive index measurement; spectral variation detection; surface plasmon resonance; thin gold layer; Optical fiber sensors; Optical fibers; Refractive index; Sensitivity; Finite element method; finite element method; microstructured D-type fiber; optical fiber sensor; refractive index sensor; surface plasmon resonance;
Journal_Title :
Sensors Journal, IEEE
DOI :
10.1109/JSEN.2015.2442335
