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Researchers Able to Stop, Then Restart Light

A team of researchers at Harvard has discovered a way to slow the speed of light to a complete stop, and then restart it again. The team is led by Lene Vestergaard Hau. Previously, Lau and her colleagues reduced the speed of light to 17 metres per second (Nature 397: 594 (1999).


This was done two years ago, when Lene Hau was at the Rowland Institute for Science (now owned by Harvard University; see http://www.rowland.harvard.edu). Many of the instruments used in these experiments were made by the Rowland electronics and machine shops. The video (available on Lene Hau's page at Harvard) was posted fairly recently.

Outstanding blog, by the way. You guys are doing great.

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