期刊
IEEE SENSORS JOURNAL
卷 21, 期 2, 页码 1470-1477出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JSEN.2020.3017938
关键词
Biosensors; Sensitivity; Graphene; Mathematical model; Absorption; Sensor; refractive index; graphene; metasurface; sensitivity
资金
- Science and Engineering Research Board (SERB)-ASEAN-India Science and Technology Development Fund (AISTDF) [IMRC/AISTDF/CRD/2018/000012]
This study conducted sensitivity analysis on different metasurface array-based biosensors, with the circle array design showing the best sensitivity performance. Optimization of the design and variation in physical parameters were explored, resulting in optimized results and comparisons with previous similar designs.
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.
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