High Quality–Factor All–Dielectric Metacavity for Label–Free Biosensing (Adv. Sci. 4/2025)

Meta-Channel Biosensor To address the trade-off between strong light field confinement and high sensitivity in high Q-factor photonic resonator sensors, Liaoyong Wen, Sumin Bian, Mohamad Sawan, and co-workers introduce in article number 2410125 a distinct “analyte medium metasurface-enhanced microcavity sensor”, achieving both high Q-factor and notable sensitivity, leading to an unprecedented figure-of-merit (1670 RIU−1).