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Saturday, September 20, 2014  

New method helps experts to see through solid layers
PARIS Scientists said on Wednesday they have developed a method to “see through” layers of thin, solid material in a breakthrough that holds promise for medical imaging, nanotechnology — and the spy trade.

Still in its infancy, the technique using laser and computer decoding has allowed a team from the Netherlands and Italy to “see” an object behind a non-see-through barrier made of ground glass.

Using the same technology, they would also be able to look behind a sheet of paper or a thin layer of paint, said study co-author Allard Mosk of the Institute for Nanotechnology at the University of Twente in the Netherlands.

With improvements, “20 years in the future I think we might have a device the size of an iPhone that you could hold on the scattering material (the non-see-through layer) and you push a button or maybe speak a command ... and you’d be seeing what’s behind it,” the physicist said.

Some objects, like paper, skin or frosted glass, let through limited light, but diffuse it so much that the human eye cannot see beyond them — like trying to see through fog.

The new method works by shining a laser on the barrier, in this case a translucent screen of ground glass made by an optics company.

Agence France-Presse
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