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Sponsored Artificial Intelligence: A Modern Approach, Global Edition Artificial Intelligence: A Modern Approach, Global Edition

Author

Feng Guo

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Nov 2026

Ultrahigh-Sensitivity RI Sensor via Cascaded Microcavities With Direct Liquid Core Interaction

Refractive index (RI) sensors are indispensable for label-free biochemical analysis, environmental monitoring, and food safety. However, conventional optical sensors fundamentally rely on weak evanescent fields for analyte interaction, creating a persistent sensitivity bottleneck. Here, we overcome this limitation by i...

Ling-Fang Wang, Feng Guo, Kai-Xin Chen · 0 citations

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