Image: Laser DSC09088

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Description: Helium-Neon laser demonstration at the Kastler-Brossel Laboratory at Paris VI: Pierre et Marie Curie. The glowing ray in the middle is a discharge tube (akin to that of a neon light), it is not the laser beam. The laser beam crosses the air and marks a red point on the screen to the right.
Title: Laser DSC09088
Credit: en:Kastler-Brossel Laboratory at en:Paris VI: Pierre et Marie Curie
Author: Copyright © 2004 David Monniaux
Permission: Put under GFDL and CC-BY-SA by the author
Usage Terms: Creative Commons Attribution-Share Alike 3.0
License: CC-BY-SA-3.0
License Link: http://creativecommons.org/licenses/by-sa/3.0/
Attribution Required?: Yes

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