| abstract |
A pigment comprising a plurality of photonic crystal particles dispersed in a medium, each photonic crystal particles containing a plurality of spectrally selective absorbing components dispersed within each photonic crystal particle that selectively absorb electromagnetic radiation without substantially absorbing electromagnetic radiation near a resonant wavelength of each photonic crystal particle, wherein each photonic crystal particle has a predetermined minimum number of repeat units of a photonic crystal structure, wherein the predetermined minimum number of repeat units is related to the resonant wavelength, the full-width at half maximum of the resonant wavelength, and the refractive index contrast in the photonic crystal. |