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Title: Atom Trap
Description: In a photo taken in the late 1980s, researcher Kris Helmerson observes a tiny glowing cloud of sodium atoms caught by six intersecting laser beams in a vacuum chamber. At that time, Helmerson was a member of William Phillips?s research group at NIST. Phillips shared the Nobel Prize in Physics in 1997 for laser cooling and trapping techniques developed in this lab. Such techniques produce the coldest temperatures in the universe and are critical for ultra accurate atomic clocks.

See also http://www.nist.gov/public_affairs/factsheet/laserfest.cfm.
Subjects (names): Helmerson, Kris
Topics/Categories:
Type: Photo/Color
Source: National Institute of Standards and Technology
Credit Line as it should
appear in print:
Credit: H. Mark Helfer, NIST
Date Created: 1988
Date Entered: 12/18/2009

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