Nanotextured glass (top) compared to regular glass (bottom) greatly reduces the glare from lights overhead. Credit: Courtesy of Brookhaven National Laboratory
Materials scientists at Brookhaven National Laboratory have developed a way to etch nano-sized patterns into glass so that glare is nearly eliminated.
To reduce the annoying glare from the surfaces of cell phones and eyeglasses, manufacturers often coat them with antireflective films. Yet these coatings are limited because they reduce the reflection of light only at certain optimal wavelengths. Now, by directly changing the morphology of glass in a process called nanotexturing, researchers can fabricate glass that cuts down on reflection from light across wide swaths of visible and infrared wavelengths, making the material close to invisible. The new glass could be useful in devices such as laser systems and solar cells, in which light loss causes inefficient performance.
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