Li-Jun Guo

Structural parameter optimization and mode-dependent sensing performance analysis of a D-shaped multimode fiber SPR sensor

The core refractive index of conventional pure SiO2 optical fiber (approximately 1.45) is lower than that of typical industrial lubricating oils (n ≈ 1.47), rendering it incapable of satisfying the phase-matching condition for surface plasmon resonance (SPR) excitation. To address this limitation, this paper proposes a...