Invisibility Cloak One Step Closer: New Metamaterials Bend Light Backwards

Scientists have for the first time engineered 3-D bulk materials that can reverse the natural direction of visible and near-infrared light, a development that could help form the basis for higher resolution optical imaging, nanocircuits for high-powered computers, and, to the delight of science-fiction and fantasy buffs, cloaking devices that could render objects invisible to the human eye.

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