Recently, several nanostructures have been proposed as a route for structural coloration. However, these demonstrations suffer from severe angle and polarization sensitivity and are impractical to integrate with industrial standards. Here, we present an approach to structural coloration that exploits the strong hybridization of localized and cavity modes of a layer of self-assembled plasmonic nanoparticles in near-field proximity to a mirror. Our approach offers a large-scale and low-cost process, that can be applied to different types of substrates offering a highly versatile colorization solution that can be exploited for biosensing, displays, or as-is for producing structural color paint.
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