1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Slowing Light down.

  1. Nov 10, 2003 #1


    User Avatar

    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


    User Avatar

    Ahhh ok.
    Thought so.

    Thanks for clearing that up for me.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Similar Threads for Slowing Light down Date
I Favorite ways to trap photons or slow down light May 12, 2017
B Why do photons pass through particles with a delay Apr 24, 2017
B Does water slow light down? Apr 27, 2016
Why does light slow down Jun 27, 2013
Slowing down light Jul 13, 2012