A subwavelength metal-grating assisted sensor of Kretschmann style for investigating the sample with high refractive index
Li Xu-Feng1, †, , Peng Wei2, Zhao Ya-Li3, Wang Qiao2, Wei Ji-Lin1
       

(a1) and (a2) Reflectance curves in different sample refractive index ns cases; (b) the comparison between theoretical and simulated results.