Invisibility Cloak Hides Bump in Gold

21Mar2010 In : On this day
Author : FJ

Invisibility cloaks are often viewed as the stuff of fairy tales, but scientists are now one step closer to making them a reality. Using a structure of crystals with air spaces in between, researchers were able to cloak a tiny bump in a layer of gold. In this trial, the bump was miniscule, a mere micrometer high. While the design can theoretically be scaled up, it is not entirely practical, as creating the cloak used in this experiment took several hours.

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