Refractive Index SPR Sensor Based on Side-Polished Capillary Fiber and PDMS

This paper introduces a novel surface plasmon resonance (SPR) sensor based on side-polished capillary fiber and polydimethylsiloxane (PDMS), which achieves an ultra-high sensitivity of 4768 nm/RIU in the refractive index detection range of 1. 333–1. 373.