Ultra-Thin Invisibility Cloak Hides 3D Objects

Sep-20-15 Researchers have created a new, ultra-thin invisibility cloak able to wrap around objects and hide them from view more effectively than previous versions.

Current examples of invisibility cloaks disrupt the phase of electromagnetic waves, which means the cloak itself can be detected with specialized instruments. In contrast, the cloak created by the UC Berkeley team manipulates the phase of the light waves with an array of gold nanoantennas, which reflect the light in a way that makes the cloak act like a flat mirror, regardless of the shape of the object.

According to team lead Xiang Zhang, "This is the first time a 3D object of arbitrary shape has been cloaked from visible light. Our ultra-thin cloak now looks like a coat. It is easy to design and implement, and is potentially scalable for hiding macroscopic objects."

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[GIZMAG.COM]
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