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Title: Photons; Faster-than-light
Description: 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.

Physics

See also http://www.nist.gov/pml/div684/stack_012610.cfm.
Subjects (names):
Topics/Categories: Time & Frequency--Atomic Clocks
Type: Graphic/illustration
Source: National Institute of Standards and Technology
Credit Line as it should
appear in print:
Credti: JQI
AV Number: 10PHY001
Date Created: 2010
Date Entered: 1/26/2010

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