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Analysis of a Single Solid Core Flat Fiber Plasmonic Refractive Index Sensor by De, Moutusi; Markides, Christos; Singh, Vinod Kumar; Themistos, Christos; Rahman, B. M. A. is a Engineering article available to read on EtoBox.

What is Analysis of a Single Solid Core Flat Fiber Plasmonic Refractive Index Sensor about?

In this article, a single solid core flat fiber (SSCFF) refractive index sensor based on surface plasmon resonance (SPR) is proposed and analyzed numerically using the finite element method (FEM). The proposed flat fiber consists of a single array of five circular holes. Among them the central hole is made of GeO 2 -doped silica which is forming the core. Other holes are filled with air and situated symmetrically on both sides of the central solid core. The upper flat surface of the fiber is coated with a thin plasmonic gold layer which is protected by an active titanium dioxide layers. Analyte is situated on top of these layers. The wavelength interrogation technique is applied to study the coupling characteristics between the core-guided mode and the surface plasmon mode as well as for the refractive index measurement. Numerical analysis results show that this sensor is able to detect high refractive index analytes from 1.49 to 1.54 with a good linear response. Additionally, the dependence of surface plasmonic resonance wavelength on analyte refractive index is studied. The maximum wavelength sensitivity of this sensor is found to be 4782 nm/RIU with a high resolution of 2.09 × 1

Who reads Analysis of a Single Solid Core Flat Fiber Plasmonic Refractive Index Sensor?

Author

De, Moutusi; Markides, Christos; Singh, Vinod Kumar; Themistos, Christos; Rahman, B. M. A.

Publisher

Springer US; Springer-Verlag; Springer Verlag; Springer Science and Business Media LLC (ISSN 1557-1955)

Published

2020

Language

EN

Field

Engineering (Physical Sciences)