ZnO and antimonene-based surface plasmon resonance sensor for enamel, dentin, and cementum layer detection in human teeth

The current numerical study suggests a novel multilayer surface plasmon resonance (SPR) sensor structure for detecting dental diseases. The suggested sensor is sensitive to changes in the sensing medium (SM) of the refractive index (RI). Over the SF11 prism, the nano-layers of silver (Ag), Zinc oxide (ZnO), and antimonene have been taken for the suggested sensor. Performance parameters sensitivity, full width at half maximum (FWHM), detection accuracy (DA), and figure of merit (FoM) are measured. Maximum sensitivity of 105.72/deg/RIU is attained with the sensing medium’s refractive index (RI) (1.33–1.631). Moreover, we have analyzed the human teeth layer enamel, dentin, and cementum detection. The value of FWHM is calculated as 1.85 deg, 1.91 deg, 1.88 deg, 1.87 deg and 1.86 deg for 0 nm, 25 nm, 50 nm, 100 nm, and 200 nm, respectively, the concentration of human teeth layer. The popular transfer matrix method is utilized for reflectance calculation: the teeth’ enamel, dentin, and cementum layer. SDG 3 pertains to health, ensures everyone has access to healthy living, and promotes well-being by establishing national goals and plans to enhance public health. This is a result of the connections between each SDG.