Design of a dual spider‐shaped surface plasmon resonance‐based refractometric sensor with high amplitude sensitivity

• DOI: 10.1049/ote2.12084
• Publication Date: 2022-11-15T11:51:29Z
• Authors: Mohammad Rakibul ...; Md Moinul Islam Khan; Fariha Mehjabin; Jubair Alam Chowd...; Mohibul Islam; Ahmad Jarif Yeasir; Jannat Ara Mim; Tajuddin Ahmed Nahid
• Keywords: Multiphysics

This study presents an investigation on the performance of sensitivity a dual spider-shaped surface plasmon resonance (SPR)-based photonic crystal fibre (PCF) refractive index sensor having unique design specifications. To evaluate guiding properties, Finite Element Method is used for utilising monetarily accessible COMSOL Multiphysics version 5.3a. A gold layer has been as plasmonic material surrounding to ensure chemical stability, and single fine coating TiO2 supported improvement attachment with fibre. The structural air holes' arrangement inside PCF gives enhanced performance. proposed PCF-SPR extremely reduced confinement losses. Numerous precise investigations parameters show highest amplitude 4233 RIU−1 in detecting scope (RI) 1.32–1.41. 2.36 × 10−6 1.18 10−5 are achieved resolution wavelength resolution, respectively. loss found this recorded be 6.22 dB/cm. RI can lead exact identification organic chemicals biological analytes specifications, providing good significantly loss.