Novel negative-index metamaterial that responds to visible light created

Scientists have engineered a type of artificial optical material -- a metamaterial -- with a particular three-dimensional structure such that light exhibits a negative index of refraction upon entering the material. In other words, this material bends light in the "wrong" direction from what normally would be expected, irrespective of the angle of the approaching light. The uniquely versatile material could be used for more efficient light collection in solar cells.

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