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Science & Technology

Physicists create new 'invisibility cloak'

By T.K. Randall
March 27, 2013 · Comment icon 13 comments

Image Credit: Novosibirsk University
Scientists have succeeded in creating an invisibility cloak using a type of material called a metascreen.
Taking us a step closer to the type of cloak seen in the Harry Potter series, the new device is capable of hiding a small object from view in microwave light by using strips of copper tape attached to a flexible polycarbonate film. The ultra-thin strips produce an effect called "mantle cloaking" which effectively cancels out any light waves hitting the shielded object. The technique differs from previous attempts which instead tried to bend light rays around the object.

"When the scattered fields from the cloak and the object interfere, they cancel each other out and the overall effect is transparency and invisibility at all angles of observation," said study co-author Andrea Alu.
A miniature version of Harry Potter's invisibility cloak now exists, though it works only in microwave light, and not visible light, so far.


Source: Live Science | Comments (13)




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Recent comments on this story
Comment icon #4 Posted by taniwha 11 years ago
This sort of technology is beginning to wear thin. There wont be much to see at any unveiling thats for sure.
Comment icon #5 Posted by Frank Merton 11 years ago
I'd prefer a Firebold broomstick with the footbraces.
Comment icon #6 Posted by Lava_Lady 11 years ago
Cool! I wish they included a video, though.
Comment icon #7 Posted by pallidin 11 years ago
If they ever succeed in cloaking visible light, God help us if terrorists, bank robbers, rapists, etc, ever get ahold of this.
Comment icon #8 Posted by Lava_Lady 11 years ago
If they ever succeed in cloaking visible light, God help us if terrorists, bank robbers, rapists, etc, ever get ahold of this. Yikes! Good point!
Comment icon #9 Posted by FlyingAngel 11 years ago
Somehow, I felt that the military is behind and silently support this project
Comment icon #10 Posted by jroman 11 years ago
Yeah I love to have it so I can go to Nudist beach!!!
Comment icon #11 Posted by Mikko-kun 11 years ago
I think it's going to be most-used for spying and as a nice situational utility for the military, and maybe for some rich fool who gets it through black market. I bet it's available for public through there in 5-10 years tops. Nukes + cloaks anyone? A nice surprise?
Comment icon #12 Posted by mcrguy18 11 years ago
now they just need to make it into a watch and I can become the spy from team fortress 2 IRL
Comment icon #13 Posted by redsquare 11 years ago
wow ! truly amazing !


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