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Researchers have developed a novel ‘cloaking carpet’ that is able to conceal objects far larger relative to its size than previous devices.

In the past year, there has been considerable progress in the development of cloaking technology, with several groups demonstrating workable devices that can conceal very small objects from optical light.

However, these devices were around 10–16 times larger than the objects that they were actually able to conceal, which places serious constraints on future practical applications when scaling up.

Now, a group of researchers from Denmark and the UK has tested a novel metamaterial cloaking device that is only around four times the size of the object it was able to conceal.

‘Instead of transforming the cloaked area to a point invisible to our eyes, a carpet cloak disguises the obstacle from light by making it appear like a flat ground plane,’ said Shuang Zhang of Birmingham University, who worked on the project alongside colleagues from Imperial College London and the Technical University of Denmark.

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Category: Science
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