As Reported by ZDNet, Researchers at Purdue University report that they’ve created a new type of invisibility cloak that is simpler than previous designs, works for all colors of the visible spectrum, and can cloak larger objects than before.

The team of engineers used a specially “tapered optical waveguide” to cloak an area 100 times larger than the wavelengths of light shined by a laser into the device, an unprecedented achievement considering that previous experiments have been limited to cloaking regions only a few times larger than the wavelengths of visible light.

The key difference is the use of a waveguide, which is established technology used in communications and other commercial applications.

“Here, we showed that if a waveguide is tapered properly it acts like a sophisticated nanostructured material,” said  Vladimir Shalaev, Purdue University’s Robert and Anne Burnett Professor of Electrical and Computer Engineering. (source ZDNet)

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