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
       

(a) Reflectance versus the grating thickness h for w = 18 nm, 8.2°; (b1) and (b2) the distribution of energy flux and the phase of Ez for h = 260 nm.