FDTD-Based CU/GO D-Shaped Fiber SPR Sensor for Detecting Refractive Index Changes in NaCl Solutions
Background: Surface Plasmon Resonance (SPR) is an optical sensing method with high sensitivity to refractive index changes near a metal surface. Integrating SPR with D-shaped optical fibers provides compact dimensions, flexibility, resistance to electromagnetic interference, and real-time sensing capabilities. Sensor p...