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October 9, 2019

Nanocrystals cooled by a laser emit a reddish-green 'glow'

As they are cooled by a laser, nanocrystals, emit a reddish-green "glow" that can be seen by the naked eye. Researchers at the University of Washington used an infrared laser to cool water by about 36 degrees Fahrenheit -- a major breakthrough in figuring out how to make a laser refrigerate water and other liquids under real-world conditions.

This research was supported in part by a National Science Foundation Graduate Research Fellowship (DGE 12-56082).

Learn more about this research in the NSF News From the Field story UW team refrigerates liquids with a laser for the first time. (Date image taken: 2015; date originally posted to NSF Multimedia Gallery: Oct. 9, 2019)

Credit: Dennis Wise/University of Washington

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