(Phys.org) —Researchers have discovered an alternative way to make an invisibility cloak that departs from other attempts to do so. Attempts in the past have been via metamaterials, created by assembling structures that interact with the light they will cloak. Metamaterials are far from perfect, are expensive, and are time-consuming, so the research team, from Zhejiang University in China, the Royal Institute of Technology in Sweden and National ...
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