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Slowing Light down.

  1. Nov 10, 2003 #1


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    Hey, I'm very inexperienced when it comes to this sort of Physics.

    I have read recently that they have managed to slow light down to 17 m/s.

    Was the experiment observable by the human eye by any chance?
    Could they actually see the light propogate at 17m/s through the given gas/what ever.

    Any chance a video has been released of it, given the above is true?

    Thanks in advance.
  2. jcsd
  3. Nov 10, 2003 #2
    It wasn't visible to the naked eye. The cloud of atoms was only a few hundred micrometers across, and light traversed it in tens of microseconds. They took pictures of the cloud before and after they sent light through it, but not during: they didn't want the imaging beam to interfere with the experiment. (The Bose-Einstein condensate of atoms is a very delicate state to maintain, and they didn't want to shine any extraneous light on it.)
  4. Nov 10, 2003 #3


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    Ahhh ok.
    Thought so.

    Thanks for clearing that up for me.
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