(Source: Duke University) Perfect absorbers capture specific wavelengths from the visible to the infrared spectrums By Ken Kingery Researchers have devised a technology that can bring true color to infrared imaging systems, like the one used to track Arnold Schwarzenegger through the jungle in the movie 'Predator.' A closer look at a coated surface using a scanning electron microscope shows a tiny silver nanocubes sitting on a gold surface. Traditional infrared imaging systems may look colorful on screen, with warm objects appearing redder and whiter than their surroundings. But these images are not created from actual colors. They are based on the amount of thermal radiation&mdashor...
↧