Hossea JH, Mfinanga A, Mwinyi V. Numerical Optimization of a Divergence-Beam Surface Plasmon Resonance Sensor with CaF2/ZnO/Ag/ZnTe Multilayers for Alpha-Fetoprotein-Associated Refractive Index Sensing. JOPR. Published online September 16, 2026. doi:10.47852/bonviewJOPR62028826