Figure 6.

(a) Schematic of the geometry used in the metamaterial stack; (b) Absorption spectra of PS-SPO composite (solid line) as deposited and upon UV irradiation (dashed line) deposited on 100 nm gold [24]. (Adapted with permission from [24] Copyright 2014, John Wiley and Sons); (c) Temperature-dependent reflectance of the checkerboard structure (area coverage D = 50%, period = 500 nm, film thickness = 100 nm). At a critical temperature, the reflectance of the sample drops to almost zero for λ = 11.3 μm due to an ultrathin film interference interaction between the film and the substrate; (d) Calculated reflectance for the sample measured in (c) using Fresnel equations and our effective medium approximation. (Adapted with permission from [111] Copyright 2016, American Chemical Society).