[time-nuts] Frequency processing scheme of HP5065 vapour rubidium standard
Tom Van Baak
tvb at leapsecond.com
Wed Nov 8 02:41:51 UTC 2006
> But something bugs me... In both fountains and single
> ion mercury standards, lasers are used to COOL DOWN
> atoms...
>
> How is it possible? Lasers are energy sources, and (at
> least for me), anything that is hit by a laser will
> get warm, not cold!
>
> Thanks for your attention..
>
> Normand Matrel
Laser cooling is a very clever technique that uses slightly
off-tuned lasers. Start with:
http://en.wikipedia.org/wiki/Laser_cooling
http://tf.nist.gov/general/enc-l.htm#lasercooling
NIST Ion Storage Group
http://tf.nist.gov/ion/index.htm
/tvb
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