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Contact: Caroline Perry
cperry@seas.harvard.edu
617-496-1351
Harvard University
Caption: The different colors in this photograph are a result of tiny variations in thickness: just 10-15 atoms of germanium separate the pink color from the violet, and another 10-15 atoms change the color from violet to dark blue. A penny is shown for size comparison.
Credit: Photo courtesy of Mikhail Kats and Lulu Liu
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Related news release: Applied physics as art
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