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Light hits near infinite speed in silver-coated glass

17:33 07 January 2013 by Jeff Hecht

A nano-sized bar of glass encased in silver allows visible light to pass through at near infinite speed. The technique may spur advances in optical computing.

Metamaterials are synthetic materials with properties not found in nature. Metal and glass have been combined in previous metamaterials to bend light backwards or to make invisibility cloaks. These materials achieve their bizarre effects by manipulating the refractive index, a measure of how much a substance alters light’s course and speed.

Read Light hits near infinite speed in silver-coated glass – physics-math – 07 January 2013 – New Scientist.

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