Laser

What is Laser?

Laser definition and meaning on Dictionary terms:
noun Physics.
a device that produces a nearly parallel, nearly monochromatic, and coherent beam of light by exciting atoms to a higher energy level and causing them to radiate their energy in phase.

 

reference: https://www.dictionary.com/browse/laser

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laser

What is laser?

laser definition and meaning on Science terms:
Laser is an acronym for Light Amplification by Stimulated Emission of Radiation. It’s a device that produces a coherent beam of optical radiation by stimulating electronic, ionic, or molecular transitions to higher levels so that when they return to lower energy levels they emit energy.

 

reference: https://imagine.gsfc.nasa.gov/resources/dictionary.html

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