Sensitivity analysis of metasurface array-based refractive index biosensors

Patel, Shobhit K. and Parmar, Juveriya and Zakaria, Rozalina Binti and Sharafali, A. and Nguyen, Truong Khang and Dhasarathan, Vigneswaran (2021) Sensitivity analysis of metasurface array-based refractive index biosensors. IEEE Sensors Journal, 21 (2). pp. 1470-1477. ISSN 1530-437X, DOI

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This work intends for sensitivity analysis of different metasurface array-based biosensors. The array designs in the form of circle array, square array, square circle array, circle square array, five-element square array, plus array, five-element plus square array. The sensitivity of these metasurface biosensors are compared and optimized design is presented. Circle array design shows the best sensitivity performance amongst them. The optimized circle array design is analyzed by varying different physical parameters of the design such as SiO2 substrate thickness and metasurface array thickness. The optimized results for this variation are also presented. The sensitivity of the current biosensor design is also compared with the previously published similar designs. The results are also presented for electric field intensity and current field density for the optimized design. The proposed sensitive biosensor can become a building block of future biomedical devices and photovoltaic devices.

Item Type: Article
Funders: Science and Engineering Research Board (SERB)-ASEAN-India Science and Technology Development Fund (AISTDF) [IMRC/AISTDF/CRD/2018/000012]
Uncontrolled Keywords: Biosensors; Sensitivity; Graphene; Mathematical model; Absorption; Sensor; refractive index; graphene; metasurface; sensitivity
Subjects: Q Science > Q Science (General)
T Technology > T Technology (General)
Divisions: Deputy Vice Chancellor (Research & Innovation) Office > Photonics Research Centre
Depositing User: Ms Zaharah Ramly
Date Deposited: 15 Aug 2022 08:02
Last Modified: 15 Aug 2022 08:02

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