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Harry Potter-like Invisibility Cloak Unveiled By Scientists

by on March 26, 2013
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Invisibility cloak

If you have seen J.K. Rowling’s Harry Potter movies you already have an idea about the invisibility cloak and maybe you even wish to have one in your closet. Actually this type of technology already exists, but it works only in microwave light.Well until now.

Thanks to scientists from the University of Texas, Austin, we might be able to own an invisibility cloak one day. They have created a thin material called a “metascreen”, made out of copper tape attached to a polycarbonate film.

According to Andrea Alu, researcher at UT-Austin, this is “the first ultra-thin cloak” and the research is called  “Demonstration of an ultralow profile cloak for scattering suppression of a finite-length rod in free space”. “Metascreens are easier to realize at visible frequencies than bulk metamaterials and this concept could put us closer to a practical realization.”

During lab tests, they successfully hid a 7-inch-long or 18 centimeters cylindrical rod from view. This cloak works at 3.7GHz.

In this moment the technology is able to hide only small objects from vision, but the evolution is remarkable and there is a variety of applications like nanoswitches,  radar camouflaging, biomedical, absorption of nanoparticles, optical nanotags, energy harvesting and many others.

In conclusion the scientists say that the their technology can be used to develope  a real invisibility cloak in the future, but new researches need to be done in order.

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Would you buy an invisibility cloak if such a product will be available on the market in the near future?

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