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Metamaterial Polarizing Filter Brightens LCDs, Photos

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SALT LAKE CITY, Nov. 21, 2014 — Polarizers are vital for LCDs and photography, but they waste energy by blocking enormous amounts of light. A new filter skirts this obstacle. A team from the University of Utah developed the polarizing filter, which allows more light in to increase the lifespan of a display’s single battery charge and helps cameras and imagers function better in dim light. The filter was created by etching a silicon wafer with nanoscale pillars and holes using a focused gallium-ion beam. The multilevel metamaterial linear polarizer rotates light with polarization perpendicular to its...Read full article

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