'optical maser' definitions:
Definition of 'optical maser'
(from WordNet)
noun
An acronym for light amplification by stimulated emission of radiation; an optical device that produces an intense monochromatic beam of coherent light [syn: laser, optical maser]
Definition of 'optical maser'
From: GCIDE
- laser \laser\ n. [acronym from Light Amplification by Stimulated Emission of Radiation: ca. 1955.] A device which produces an intense, usually narrow, monochromatic beam of coherent light; called also {optical maser}. It has various forms, and is used in various applications in science and technology. The beam is produced by boosting the majority of the electrons in specific radiation-absorbing atoms in a medium into a higher energy level, from which they are stimulated by their own emitted radiation to drop back synchronously to their lower energy level, and emit light which is in phase (coherent).
- Syn: optical maser. [WordNet 1.5]