Optical “Black Hole” Created

October 14th, 2009 | researchmaterial

It uses meta-materials, previously applied to the "invisibility cloak" technology:

An electromagnetic "black hole" that sucks in surrounding light has been built for the first time. The device, which works at microwave frequencies, may soon be extended to trap visible light, leading to an entirely new way of harvesting solar energy to generate electricity.


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