Technology
By Adam Mann
20 June 2018
A bendable sheet of silicon can hide 95 percent of infrared light, rendering objects essentially invisible to heat-sensing night vision goggles or infrared cameras.
Black silicon is made by growing silicon crystals at various heights on a silicon wafer, creating what looks like a dense forest of needles. This material hardly reflects any visible light, because light waves bounce back and forth between the steeple-like silicon towers, preventing their escape.
Hongrui Jiang at the University of Wisconsin-Madison and his…
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