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Lasers

Topic: Category

 From Wikipedia - Reading time: 1 min
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A laser (from the acronym of Light Amplification by Stimulated Emission of Radiation) is an optical source that emits photons in a coherent beam.

The main article for this category is Laser.
Licensed under CC BY-SA 3.0 | Source: https://en.wikipedia.org/wiki/Category:Lasers
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