Entirely new way to filter light achieved by MIT researchers

By CleanTechnica
Saturday, March 29, 2014 9:34 EDT
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New Way To Filter Light — First Directional Selectivity For Light Waves Achieved By Researchers (via Clean Technica)

An entirely new way to filter light, one that has long been sought but until now remained elusive, has been achieved by researchers at MIT. For the first time, it’s become possible to selectively filter light according to its direction of propagation…

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