Figure 4 | Scientific Reports

Figure 4

From: Nanostructured plasmonic metapixels

Figure 4

2D plasmonic-MIM pixel: (a) Schematic of nanostructured MIM plasmonic structures, with the nanostructure dimension in the x-dimension, L x , and y-dimension L y , with symmetric grating period, Λ xy . (b,c) Selected FDTD simulations (reflection response and associated field profiles) of a typical 2D plasmonic MIM pixel with two resonant absorption modes - taken from larger set of simulations shown in Supplementary Material. α is the x-z plane intersection, β the x-y plane and γ the z-y plane. (d,e) Experimental optical characterization results of a range of pixels exhibiting vivid colors under varying polarization conditions, with selected pixels exhibiting RGB behavior shown in (g). (f) SEM images showing the extremes of the range of different arrays; from smallest-to-largest grating period (A–E) and smallest-to-largest L x parameter.

Back to article page