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Design and Numerical Analysis of a Novel Rectangular PCF (R-PCF)-Based Biochemical Sensor (BCS) in the THz Regime

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Version 2 2024-06-04, 04:49
Version 1 2021-03-02, 12:13
journal contribution
posted on 2024-06-04, 04:49 authored by AAM Bulbul, Abbas KouzaniAbbas Kouzani, MAP Mahmud, AA Nahid
A novel PCF-based sensor has been presented in this paper to sense different chemicals and biocomponents. The proposed biochemical sensor (BCS) comprises a simple arrangement of rectangular holes. The competence of this BCS in detecting analytes is evaluated employing the full-vector finite element method (FEM). Performance metrics prove the competence of this BCS in sensing various analytes that have a refractive index in the range of 1.33–1.48. The proposed BCS shows ultralower values for both the bulk absorption and confinement loss. This BCS attains a maximum of about 95.82% relative sensitivity at 2.5 THz. Also, the dispersion for this sensor is only 0.12 ± 0.011 ps/THz/cm at the same point of interest. These results prove that the proposed BCS will play a key role in sensing toxic chemicals, illegal drugs, biocomponents, etc. Besides, the simple rectangle-based PCF structure ensures the feasibility of fabrication by practicing the existing fabrication strategies.

History

Journal

International Journal of Optics

Volume

2021

Article number

ARTN 5527724

Pagination

1 - 16

Location

London, Eng.

Open access

  • Yes

ISSN

1687-9384

eISSN

1687-9392

Language

English

Publication classification

C1 Refereed article in a scholarly journal

Publisher

HINDAWI LTD

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