Photonic Spin Hall Effect as a Highly Sensitive Refractive Index Sensing Platform for Glucose
Peng Dong,
Yinjie Xiang,
Jie Cheng
Abstract:This study presents an innovative refractive index (RI) sensor that measures glucose concentration by utilizing the photonic spin Hall effect (SHE) in a resonant optical tunneling effect (ROTE) structure. The ROTE structure consists of three InP layers with the high RI and two analyte layers (with a high‐low‐high‐low‐high RI distribution), in which glucose solution samples with the low RI are injected. By subjecting the InP layers to external bias‐assisted light, the photonic SHE can be flexibly manipulated, e… Show more
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