Highly Sensitive Graphene-Based Refractive Index Biosensor Using Gold Metasurface Array

• Main Authors: Patel, Shobhit K., Parmar, Juveriya, Trivedi, Himitri, Zakaria, Rozalina, Nguyen, Truong Khang, Dhasarathan, Vigneswaran
• Format: Article
• Published: Institute of Electrical and Electronics Engineers (IEEE) 2020
• Subjects: Q Science (General); QC Physics
• Online Access: http://eprints.um.edu.my/25409/; https://doi.org/10.1109/LPT.2020.2992085

In this letter, a highly sensitive refractive index biosensor applicable in medical devices is proposed. The biosensor design is analyzed for different concentrations of hemoglobin biomolecules. The 70nm shift in the wavelength is observed for two hemoglobin biomolecules with 1.34 and 1.36 refractiv...