Gallery: New Ultra Thin Invisibility Cloak Hides 3D Objects from Microw...

 

Photo via Shutterstock

Researchers from the University of Texas at Austin have devised a new kind of invisibility cloak that can hide 3D objects from micro waves. Comprised of an ultralight layer called a metascreen, the cloak hides objects from all different directions and points of view – and unlike previous designs, this one isn’t at all bulky. The findings have been documented in the New Journal of Physics.

Photo via Shutterstock

Objects are visible when sound, light, x-rays or microwaves rebound off their surface. We see the objects when light bounces off the object toward our eyes, which then process the information. So for now, the new “mantle cloaking” technique devised by the Texas researchers won’t foil our vision of 3-D objects, but it can make an 18cm cylindrical rod invisible to microwaves at a frequency of 3.6GHz.

The latest cloaking material is made with strips of 66 µm-thick copper tape attached to a 100 µm-thick, flexible polycarbonate film in a fishnet design, according to Physorg. This lightweight metascreen cancels out the microwaves when they disperse over the cloaked object, demonstrating that it isn’t necessary to have a bulky material to achieve the invisibility affect. In fact, the ultra thin metascreen may prove to be better.

Via Physorg

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