Title

The design and analysis of a dual-diamond-ring PCF-based sensor

College

College of Science

Department/Unit

Physics

Document Type

Article

Source Title

Journal of Computational Electronics

Volume

19

Issue

3

First Page

1288

Last Page

1294

Publication Date

9-1-2020

Abstract

A dual-diamond-ring photonic crystal fiber (PCF)-based sensor is proposed and analyzed herein for the detection of the concentration of alcohol in aqueous solution. Commercially available finite element method (FEM)-based simulation software (COMSOL Multiphysics® version 4.3b) is utilized to conduct a rigorous numerical investigation. The sample is injected inside the fiber. Several crucial optical parameters such as the index difference, coupling length, transmission spectrum, peak wavelength shift, and sensitivity are studied while ensuring an anisotropic perfectly matched layer (A-PML) for X and Y polarization, respectively. The results indicate that the coupling length strongly depends on the concentration of the solution. Moreover, maximum sensitivities for the X and Y polarization of 6166 nm/RIU and 6000 nm/RIU, respectively, are found from the computational model. Based on this outstanding performance, it can be anticipated that practical implementation of such sensors would open a new horizon in the area of biomedical or clinical sensing. © 2020, Springer Science+Business Media, LLC, part of Springer Nature.

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Digitial Object Identifier (DOI)

10.1007/s10825-020-01509-2

Disciplines

Electrical and Electronics | Physics

Keywords

Photonic crystals; Couplings; Sensitivity theory (Mathematics); Finite element method

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