Thermally-painted metasurfaces yield perfect light absorbers for high-tech applications
(PHYSorg.com Nanotechnology)

Researchers have discovered that the ancient technique of heating metal to create vibrant colors creates a nanostructured surface that acts as a perfect light absorber. Perfect light absorbers-materials that absorb more than 99% of a certain color-can be used for sensing, solar panels, anti-counterfeiting and stealth technologies.