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(Color online) Schematic view of a flat metallic film coated symmetically on both sides with (a) 1D and (b) 2D PCDLs.
(Color online) Transmission (solid) and absorption (dashed) spectra for light normally incident upon a Ag film coated symmetrically with (a) 1D and (b) 2D PCDLs. The inset shows the transmission (solid) and absorption (dashed) spectra for the corresponding Ag film without any coating.
(Color online) Transmission and absorption spectra for a Ag film coated symmetrically with 1D (upper panels) and 2D (lower panels) PCDLs as a function of in-plane wave vector and frequency in the color-scale form. The in-plane wave vector of incident light for the 1D PCDLs is parallel to the direction of periodicity, while it is along the [1,0] direction of the square lattice for the 2D PCDLs. The shaded area in the lower right corner denotes the region below the light line of air. The dashed lines stand for the folded SPP dispersion for a Ag surface coated with an effective homogeneous dielectric layer.
(Color online) Same as Fig. 3 but for the transmission spectra of a Ag film coated symmetrically with (a) 1D and (b) 2D PCDLs.
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