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Photonic Structure Saves Energy in Cooling

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STANFORD, Calif., Feb. 4, 2014 — Imagine cooling a building on a hot day using little to no electricity. That’s exactly what a team at Stanford University is aiming for. The team, led by professor Shanhui Fan, has designed a photonic structure that could enable passive cooling during the hottest hours of the day. Using a technique called “daytime radiative cooling,” a photonic structure emits its heat as thermal electromagnetic waves to the cold of outer space, while simultaneously and strongly reflecting sunlight. The device exploits an atmospheric transparency window that exists between 8 and...Read full article

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    Published: February 2014
    ambientAmericasBiophotonicselectricityelectromagnetic wavesenergyLight SourcesOpticsphotonic crystalResearch & TechnologysolarStanford Universitytemperaturethermaldaytime radiative coolingLEDs

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