ABSTRACT
Color is fundamental to the human experience. This chapter discusses the use of resonances on eigenmodes in coupled multi-particle systems for structural coloration applications. Coloration can be achieved via pigments, surface structuring, and a combination of pigments and surface structuring. Structural coloration is very prevalent in the biological world where organisms utilize it to achieve coloring related signaling. Surface structuring in the forms of diffractive elements and holograms is ubiquitous in modern times. Current state-of-the-art nanofabrication capabilities enable the creation of well-controlled nanostructures and arrays of nanostructures. The development of the color matching functions was a very important advancement in colorimetry. These functions describe the amounts of the three primaries that in combination will provide a similar color perception as a unit-intensity monochromatic source at a given wavelength. Classical electrodynamics can explain the optical properties of nanoparticles even down to the size of a few nanometers.
