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单词 maser
释义

maser

/ˈmeɪzə /
noun
A device using the stimulated emission of radiation by excited atoms to amplify or generate coherent monochromatic electromagnetic radiation in the microwave range. Compare with laser.There are of course lasers with wavelengths in the infrared, masers that emit coherent microwaves, and even x-ray lasers....
  • Instead of emitting light, like a laser, the maser emits microwave energy at a specific frequency, which produces a very specific ticking.
  • Instead of emitting visible light, a maser generates a beam of pure microwave energy - electromagnetic waves intermediate in length between infrared and radar.

Origin

1950s: acronym from microwave amplification by the stimulated emission of radiation.

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更新时间:2024/12/31 23:14:19