Design of Environmental Biosensor Based on Photonic Crystal Fiber with Bends Using Finite Element Method

Haxha, Shyqyri, Teyeb, Ahmed, Malek, Fathi Abdel, Akowuah, Emmanuel Kofi, Dayoub, Iyad (2015) Design of Environmental Biosensor Based on Photonic Crystal Fiber with Bends Using Finite Element Method. Optics and Photonics Journal, 5 (3). pp. 69-78. ISSN 2160-8881. (doi:10.4236/opj.2015.53006)

Abstract

In this paper, a biosensor based on photonic crystal fiber (PCF) is proposed and designed using Full-Vectorial Finite Element Method (FVFEM). The proposed PCF sensor consists of three concentric circles surrounding the core. The key optical sensor characteristics such as sensitivity, the field profiles and real part of the refractive index of the proposed PCF structure are investigated by employing the FVFEM. The proposed sensor can be deployed for environmental sensing when the PCF active region is filled with either analytes such as liquids or gas. By careful selection of the design parameters such as the radius of the sensing circle, the diameter of air holes in the core region and hole to hole spacing, ?, the sensitivity analytes is determined. Our simulation results show that, the electric field distribution is primary localized in the third concentric circle with a radius of 16 ?m. Effects of PCF bending on the sensitivity is also studied and reported.

Item Type:	Article
DOI/Identification number:	10.4236/opj.2015.53006
Uncontrolled keywords:	Biosensors, Photonic Crystal Fibres Sensor, Nanosensor, Finite Element Method
Subjects:	T Technology
Divisions:	Faculties > Sciences > School of Engineering and Digital Arts
Depositing User:	Tina Thompson
Date Deposited:	01 Apr 2015 08:36 UTC
Last Modified:	29 May 2019 14:23 UTC
Resource URI:	https://kar.kent.ac.uk/id/eprint/47820 (The current URI for this page, for reference purposes)