A carbon nanotube coating developed at the University of Michigan acts as a "magic black cloth" that conceals an object's three-dimensional geometry and makes it look like a flat black sheet.
The 70-micron coating, or carbon nanotube carpet, is about half the thickness of a sheet of paper. It absorbs 99.9 percent of the light that hits it, researchers say.
"You could use it to completely hide any 3D attributes of an object," said Jay Guo, a professor in the Department of Electrical Engineering and Computer Science and principal investigator.
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