#Energy
http://ift.tt/1oaAird http://bit.ly/15KdByZ
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 — in other words, to filter it based on where it’s coming from.
New Way To Filter Light — First Directional Selectivity For Light Waves Achieved By Researchers was originally published on CleanTechnica. To read more from CleanTechnica, join over 50,000 other subscribers: Google+ | Email | Facebook | RSS | Twitter.
http://ift.tt/1oaAird http://bit.ly/15KdByZ
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