mahmud-designandnumerical-2021.pdf (2.27 MB)
Design and numerical analysis of a novel rectangular PCF (R-PCF)-based biochemical sensor (BCS) in the THz regime
journal contribution
posted on 2021-02-19, 00:00 authored by Abdullah Al-Mamun Bulbul, Abbas KouzaniAbbas Kouzani, M A Parvez Mahmud, Abdullah-Al NahidA 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 opticsVolume
2021Pagination
1 - 16Publisher
Hindawi LimitedLocation
London, Eng.Publisher DOI
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ISSN
1687-9384eISSN
1687-9392Language
engPublication classification
C1 Refereed article in a scholarly journalUsage metrics
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