"Invisible" materials could be made with light
Posted: Tue Jul 29, 2014 12:23 pm
By Tanya Lewis
Invisibility cloaks may not be a reality yet, but a new method of building materials with light could one day be used to make these kinds of cloaking devices, researchers say.
The novel technique involves creating materials out of building blocks just a few billionths of a meter wide (about the width of a strand of DNA) that control the flow of light. These artificial "metamaterials" could bend light in such a way as to make an object invisible, according to the study published on July 28 in the journal Nature Communications.
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