atomic gas laser

atomic gas laser

[ə′täm·ik ′gas ‚lā·zər]
(optics)
A gas laser, such as the helium-neon laser, in which electrons and ions accelerated between electrodes by an electric field collide and excite atoms and ions to higher energy levels; laser action occurs during subsequent decay back to lower energy levels.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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