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Can you laser cool from afar?

  1. Dec 15, 2014 #1
    Just wondering If it is possible to laser cool an object from afar or from a large distance away? Suppose you wanted to laser cool a planet with satellites in orbit around it, Would that be possible? Doesn't matter If they'd have to be ridiculously huge to have a noticeable effect or would take a very long period of time, Just wondering If it's possible. If not, then what is the threshold distance you can laser cool from if any?
  2. jcsd
  3. Dec 15, 2014 #2


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    I can't see any way that it could be done at all. Do you know how laser cooling actually works?
  4. Dec 15, 2014 #3
    I do but I've only heard of it in the context of super-cooling, like very near absolute zero.

    In that regards it more or less gives very low energy electrons nowhere to move, but only very low energy before it is employed.
  5. Dec 15, 2014 #4
    Can you cool an object with laser if you are close by?
    How would you do it?
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