Invisibility gun!

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Djchrismac
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Invisibility gun!

Post by Djchrismac » Sun Dec 15, 2013 7:23 am

Invisibility gun uses a beam of darkness to make objects vanish from sight
http://www.extremetech.com/extreme/1727 ... a-distance

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Researchers at the National University of Singapore have built a beam of darkness that can make objects invisible from a long distance away. This isn’t the plot from some not-so-distant sci-fi movie: It really works. The beam of darkness can create a 3D region of invisibility — or “empty light capsule” as the researchers call it — that can hide macroscopic objects.
Cornell University - Experimental demonstration of light capsule embracing super-sized darkness inside via anti-resolution
http://arxiv.org/abs/1312.0057
We theoretically and experimentally demonstrate the focusing of macroscopic 3D darkness surrounded by all light in free space. The object staying in the darkness is similar to staying in an empty light capsule because light just bypasses it by resorting to destructive interference. Its functionality of controlling the direction of energy flux of light macroscopically is fascinating, similar in some sense to the transformation-based cloaking effect. Binary-optical system exhibiting anti-resolution (AR) is designed and fabricated, by which electromagnetic energy flux avoids and bends smoothly around a nearly perfect darkness region. AR remains an unexplored topic hitherto, in contrast to the super-resolution for realizing high spatial resolution. This novel scheme replies on smearing out the PSF and thus poses less stringent limitations upon the object's size and position since the created dark (zero-field) area reach 8 orders of magnitude larger than the square of wavelength in size. It functions very well at arbitrarily polarized beams in three dimensions, which is also frequency-scalable in the whole electromagnetic spectrum.
"The beam of darkness can create a 3D region of invisibility" - does this mean they are hiding the "N" in the cosmic sector or is this more like the Predator's camouflage and they are only bending the light round the object to hide it?

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Ilkka
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Re: Invisibility gun!

Post by Ilkka » Sun Dec 15, 2013 8:39 am

Hmm... I wouldnt be so sure that this kind of technology would work on a living subject "healthly", since it creates "darkness" absence of light and energy, so this might actually be depriving to the animate matter. Unless projected further away from the living. And what comes to the actual "field of darkness" it might even kill any living matter, if entered to the beam of darkness or the coagulation point in question.

soldierhugsmember
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Re: Invisibility gun!

Post by soldierhugsmember » Sun Dec 15, 2013 4:57 pm

Yeah, the military would have great fun with that.

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