David Kirkpatrick

May 14, 2008

More science fiction turning into science fact

From KurzweilAI.net, taking steps toward an invisibility cloak

New material may be step towards 3D invisibility cloak
New Scientist, May 13, 2008

A researcher at the University of California at Berkeley claims to have made a 3D metamaterial with a negative refractive index, the first 3D material of this kind.

Physicists have in recent years made it possible to bend, or refract, light in the opposite direction to any natural materials. These metamaterials make it possible to create invisibility cloaks that hide an object by steering light around it. The materials and “invisibility cloaks” built so far have all been flat, working only in two dimensions.

The negative refraction index will have to be confirmed by measuring the speed of light in the material.

See Also Physicists draw up plans for real ‘cloaking device’

 
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2 Comments »

  1. [...] California at Berkeley — davidkirkpatrick @ 2:41 pm From KurzweilAI.net — I’ve blogged on 3D cloaking devices before, very likely the previous KurzweilAI.net linked blog post from mid-May is an earlier report of this [...]

    Pingback by Cloaking device becoming feasible? « David Kirkpatrick — August 11, 2008 @ 2:42 pm

  2. [...] pm From KurzweilAI.net — I’ve blogged on invisibility cloaks and their feasibility here and here. Now all that excitement may be [...]

    Pingback by Cloak of invisibility meet your master « David Kirkpatrick — September 3, 2008 @ 10:02 pm


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