Long-range surface plasmon resonance-based sensitivity study on d-shaped ag-mgf2-coated models with analyte variations

Kamkar, Amrita and Zakaria, Rozalina and Zainuddin, Nur Aina'a Mardhiah and Tanvir, Jahid and Grover, Amit and Al Zahrani, Fahad Ahmed and Ahmed, Kawsar (2022) Long-range surface plasmon resonance-based sensitivity study on d-shaped ag-mgf2-coated models with analyte variations. Plasmonics, 17 (1). pp. 277-286. ISSN 1557-1955, DOI https://doi.org/10.1007/s11468-021-01524-4.

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In this report, a novel D-shaped long-range surface plasmon resonance (LRSPR) fiber base sensor has been introduced. The demonstration of proposed sensor involves two D-shaped silver-coated models to study the sensitivity responses. The entire study with the constructed models is based on a single-mode fiber. The models are multilayered consisting of metal, dielectric, and analyte as separate layers. Silver (Ag) and magnesium fluoride (MgF2) strips are used as metal and dielectric layers respectively. The constituency of analyte as an interface excellently standardized the models for sensitivity detection. In this report, a large range of analyte refractive indices (RI) which varies from 1.33 to 1.38 is appraised for the proposed models to characterize the sensitivity. The entire context is encompassed by the wavelength region from 450 to 850 nm with an interval of 20 nm. Sensitivities in this report are measured based on the analyte position from the core and metal for both models. For each of the two models, the analyte is placed as the top layer. RIs of the applied metal (Ag) are measured using the Drude-Lorentz formula. The simulated sensitivities for model-1 and model-2 vary from 6.3 x 10(3) nm/RIU to 8.7 x 10(3) nm/RIU.

Item Type: Article
Funders: National Science, Technology and Innovation Plan (MAARIFAH) [12-INF2970-10]
Uncontrolled Keywords: LRSPR; D-shaped model; Analyte sensing; Silver-MgF2 coating; RI sensitivity; Drude-Lorentz
Subjects: Q Science > Q Science (General)
Q Science > QD Chemistry
Divisions: Deputy Vice Chancellor (Research & Innovation) Office > Photonics Research Centre
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 26 Apr 2022 08:03
Last Modified: 26 Apr 2022 08:03
URI: http://eprints.um.edu.my/id/eprint/33794

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