optical maser


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optical maser

n.
A laser, especially one that produces visible radiation.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

la•ser

(ˈleɪ zər)

n.
a device that produces a nearly parallel, nearly monochromatic, and coherent beam of light by exciting atoms and causing them to radiate their energy in phase.
Compare maser.
[1955–60; l(ightwave) a(mplification by) s(timulated) e(mission of) r(adiation)]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.optical maser - an acronym for light amplification by stimulated emission of radiationoptical maser - an acronym for light amplification by stimulated emission of radiation; an optical device that produces an intense monochromatic beam of coherent light
optical device - a device for producing or controlling light
photocoagulator - surgical instrument containing a laser for use in photocoagulation
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
The new kind of laser, or optical maser, operates on a principle never used before--stimulated "Raman" scattering.
The device was first called an optical maser, but since it could be described as light amplification by stimulated emission of radiation, the initials of that phrase were used and it came to be called a laser.
Theodore Malman demonstrates the first optical maser, or laser (4/23/60, p.