Fig. 4From: Dichroic Optical Diode Transmission in Two Dislocated Parallel Metallic GratingsThe surface charge density on the silver/silica interface at G1 and G2, under the condition of downward incidence at λD = 1315 nm (a) and upward incidence at λU = 921 nm (c). Ey component of the electric field under the condition of downward incidence at λD = 1315 nm (b) and upward incidence at λU = 921 nm (d)Back to article page