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Contact: Ben Stein
bstein@nist.gov
301-975-3097
National Institute of Standards and Technology (NIST)

Stacking the Deck: Single Photons Observed at Seemingly Faster-than-Light Speeds (1 of 2)

Caption: A single photon travels through alternating layers of low (blue) and high (green) refractive index material more slowly (top) or quickly (bottom) depending upon the order of the layers. A strategically placed additional layer (bottom) can dramatically reduce photon transit time.

Credit: JQI

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Related news release: Stacking the deck: Single photons observed at seemingly faster-than-light speeds


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