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About the Cover

Cover Figure


COVER A crystal with 41 holographic filters. Each filter selects one wavelength channel in the fiber communication system at near-infrared wavelengths. When illuminated with white light, each filter diffracts a slightly different spectral band, creating a blue-to-green color gradient. Optical storage is one example of coherence manipulation highlighted in the special section in this issue. 1353 [Photo: Chris Moser and Demetri Psaltis]

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Science. ISSN 0036-8075 (print), 1095-9203 (online)