Simulation of Quasi-Bound States in the Continuum Driven All-Dielectric Nano-slit Array-based Sensor: Probing Absorptive Analytes under Visible Light

Abstract

An all-dielectric quasi-BIC sensor with narrow linewidth has been simulated for detecting absorptive analytes. The spectral and transmittance sensitivities were calculated to be 204.08 nm/RIU, and 1223.045 %/RIU, respectively.