Colors in nature are not always produced by pigments. Pearls, bird feathers, butterfly wings, and opals display brilliant ...

From dot-matrix to 3-D, printing technology has come a long way in 40 years. But all of these technologies have created hues by using dye inks, which can be taxing on the environment. Now a team ...

Fig. 1 (A) Schematic illustration of the mechanism underlying the formation of interference colors. (B) Photographs of the representative NF-C film, as observed under crossed polarizers. (C) Polarized ...

Several light sources produce light across various wavelengths. While this wavelength spectrum can be useful in lighting applications, other applications require light with a restricted visible ...