Design and analysis of a QC-SPR-PCF sensor for multipurpose sensing with supremely high FOM.

Autor: Islam, Mohammad Rakibul, Khan, Md Moinul Islam, Siraz, Sadia, Mehjabin, Fariha, Rahman, Muntaha, Islam, Mohibul, Anzum, Mariea Sharaf, Chowdhury, Jubair Alam, Noor, Fateha
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Zdroj: Applied Nanoscience; Jan2022, Vol. 12 Issue 1, p29-45, 17p
Abstrakt: A highly sensitive quadrature cluster-based surface plasmon resonance photonic crystal fiber (QC-SPR-PCF) sensor has been stated in this manuscript for detecting unspecified analytes within the RI span of 1.32 to 1.43. Tactical placement of air holes in the cladding region and the external sensing approach has been chosen to ameliorate sensing performance. This fiber shows the highest amplitude sensitivity of 5274 RIU−1 with ultra-high wavelength sensitivity of 75,000 nm/RIU at optimum conditions. It has achieved an ultra-high figure of merit (FOM) of 4230.42 RIU−1 which is the highest till now to the best of our knowledge, with an amplitude resolution of 1.90 × 10–6 RIU and a wavelength resolution of 1.33 × 10–6 RIU. Furthermore, the temperature sensitivity of 1 nm/°C and a magnetic field sensitivity of 160 pm/Oe achieved during the numerical investigation introduce the possibility of a multipurpose sensor. Fabrication tolerance for ± 10% variation in diameter of air holes has also been analyzed. So, it is believed that this study can contribute a lot to pharmaceutical researches and biomedical engineering because of the proposed fiber's versatile features. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index