Proposed reflective metasurface shows 744 nm/RIU sensitivity in refractive index sensing, suggesting significant advancements over similar technologies.
We propose a reflective metasurface based on quasi-bound states in the continuum with a sensitivity of 744 nm/RIU, demonstrating superior refractive index sensing capabilities compared to analogous metasurfaces.
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Wang et al. (2025) studied this question.
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