Fabrication and simulation studies on D-shaped optical fiber sensor via surface plasmon resonance

Zakaria, Rozalina and Kam, W. and Ong, Y.S. and Yusoff, S.F.A.Z. and Ahmad, Harith and Mohammed, W.S. (2017) Fabrication and simulation studies on D-shaped optical fiber sensor via surface plasmon resonance. Journal of Modern Optics, 64 (14). pp. 1443-1449. ISSN 0950-0340

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Official URL: https://doi.org/10.1080/09500340.2017.1293858

Abstract

This paper describes simulation and experimental methods for designing a D-shaped surface plasmon resonance (SPR) fibre sensor. The sensor consists of two set-up approaches. Finite element method is used in simulation on the fibre sensor device. Two experimental methods for detecting relative intensity are used by varying the wavelength of the optical signal sources and the thickness of gold layer coated on the D-shaped fibre. In the first method, the sensor device works by detecting the relative intensity of two optical signal sources having different wavelengths. In the second set-up, the relative intensity between two D-shaped fibres coated with different thicknesses of gold is measured when a single signal source is launched at the input. The difference in intensities of the signal outputs is used to estimate the refractive index at the sensing region. A prototype SPR D-shaped fibre sensor has been fabricated and the experimental results show good agreement with simulation.

Item Type: Article
Uncontrolled Keywords: D-shaped fiber; Surface plasmon resonance; Gold layer; Finite element method
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Divisions: Faculty of Science > Dept of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 07 Jun 2018 08:44
Last Modified: 11 Oct 2018 03:31
URI: http://eprints.um.edu.my/id/eprint/18841

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