| Abstrakt: |
The severe respiratory syndrome coronavirus-2 (SARS-CoV-2) is researching the COVID-19 pandemic epidemic as a worldwide health concern. Analytical tools that are sensitive, quick to produce results, affordable, and accurate with high precision are necessary to observe infected individuals for effective quarantine and prompt treatment. Therefore, this paper presents a numerical investigation of the Kretschmann configuration-based surface plasmon resonance (SPR) sensor, a label-free, highly sensitive, low-cost device for detecting SARS-CoV-2. The proposed sensor comprises of six layers, and is Bor Kron7 (BK7)-silver (Ag)-Franckeite-barium titanium (BaTiO3)-black phosphorus (BP)-sensing medium. For the detection process, the transfer matrix method is used along with and the angular interrogation procedure to analyze the performance of the sensor in terms of sensitivity, quality factor (QF), detection accuracy (DA), and limit of detection (LOD). Initially, the thickness of Ag and BaTiO3 layers is optimized by obtaining better sensitivity. Furthermore, to manifest the impression of the proposed sensor, we calculate the sensitivity performance for different structures, which are comprised of considered materials. Moreover, with the optimized structure, the SPR sensing parameters are analyzed for different SARS-CoV-2's refractive index values and found the extreme sensitivity of 331.54°/RIU, QF of 119.69 RUI−1, DA of 3.11, and LOD of 1.51E − 5. Finally, electric field intensity factor responses are plotted, following by performance comparison between the proposed work and existing work. [ABSTRACT FROM AUTHOR] |
