Fig. 3From: Wide-Gamut and Polarization-Independent Structural Color at Optical Sub-diffraction-Limit Spatial Resolution Based on Uncoupled LSPPsDistribution of the electric field (|E|2) in the XZ plane for the structure with a, b D = 80 nm, P = 180 nm, and c, d D = 160 nm, P = 180 nm. a, c Illuminated at the reflection valleys. b, d Both illuminated at the long incident wavelength of 600 nm. The white dashed lines are the boundaries of the Ag layerBack to article page