molecular gas laser

molecular gas laser

[mə′lek·yə·lər ¦gas ′lā·zər]
(optics)
Any gas laser in which the gas consists of molecules rather than atoms; such a laser can be operated on a large number of rotational-vibrational lines, and, at a sufficiently high pressure, these lines overlap and a wide gain region is obtained. Also known as molecular laser.
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