Numerical Modeling and Machine-Learning Optimization of a BaTiO3–Graphene–Ag THz Metasurface for Refractive-Index Biosensing Towards SARS-CoV-2 Detection. - Srisabarimani, K.; Dhivya, R.; Srihari, T.; Parthasarathy, P.; Arun Kumar, U. (Sensing & Imaging, 2026)