Nanostructures and Nanofabrication
It is possible to organize atoms in structures that are only a few nanometers in size. A nanometer has approximately four atoms in diameters or 1/50,000 of a human hair. A particularly attractive target is the self-assembly of nanostructures, which produces huge quantities of artificial materials with new properties. They are hexagonal in shape and are a few hundred nanometers high and separated. Because these patterns are smaller than the wavelength of visible light, the surface of the eye has a very low reflectance for visible light, so that the eye of the moth can absorb more light.