Metal-dielectric structure with 2D surface grating for refractive index sensor

This paper deals with the theoretical study of metal dielectric structure with two-dimensional surface grating as an optical sensor for medical applications for sucrose solutions detection. In the proposed structure, a surface plasmon resonance (SPR) response of the plasmonic structure in a spectral range of 556.3 nm – 558.6 nm with a sensitivity from 112.5 nm/RIU to 235 nm/RIU was revealed.