Dual-resonance sensing for environmental refractive index based on quasi-BIC states in all-dielectric metasurface.

ABSTRACT: Metasurface provides a novel way to modulate light energy at specific wavelengths, namely resonances, where there is a sharp drop in the transmission spectrum. Based on the relationship between the resonant position and the environmental condition, various refractive index detection methods have been developed. However, the resonance spectrum is strongly affected by the environmental and instrumental fluctuations, and current researches usually focus on the improvement of a single sensing performance metric, such as the Q factor, sensitivity, detection range, etc. In this work, we proposed an all-dielectric metasurface for environmental refractive index sensing based on quasi-BIC with an enhanced stability, simultaneously taken into account an enlarged detection range, a high Q factor and

SUBMITTER: Chen W 

PROVIDER: S-EPMC11501798 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature