Working with new electromagnetic materials known as “transformation optics”, researchers at the Duke University developed in 2006 first “invisibility cloak,” which used metamaterials to hide a small object from microwaves. While it did not hide things from human view, keeping it hidden from microwaves was an important first step to pushing the technology of cloaking forward. It left small reflections, which prevented it from completely hiding an object. Now a member of that laboratory has developed a new design that ties up one of the major loose ends from the original device. These new findings could be important in transforming… Login to continue

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