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This sensor achieves ultra-high sensing resolution of 0.0001 RIU and sensitivity of 10135 °/RIU, indicating superior performance over traditional methods.
An innovative angular interrogation method is applied in a reflective guided-mode resonance metasurface, achieving ultra-high sensing resolution (0.0001 RIU) and sensitivity (10135 °/RIU). This method outperforms surface plasmon resonance sensors by two orders of magnitude.
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Ma et al. (2025) studied this question.
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