Invisibility cloak

Date:9 February 2010

Step aside, Harry Potter… researchers have made an invisibility cloak of their own. The research team from Berkeley Lab created a “carpet cloak” from nanostructured silicon that conceals the presence of objects placed under it from optical detection.

This video shows how a beam of light is obstructed by an object in a flat surface and casts a shadow until the object is cloaked, at which point the light is reflected as if the surface were still perfectly flat.

Video credit: Jensen Li

To find out more, read the related news story:
Blurring the line between magic and science: Berkeley researchers create an “invisibility cloak”
 

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