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“Laser” is an acronym for Light Amplification by Stimulated Emission of Radiation. A laser is created when electrons in the atoms in optical materials like glass, crystal, or gas absorb the energy from an electrical current or a light.
LASER from en.m.wikipedia.org
A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation.
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LASER from www.britannica.com
Apr 27, 2024 · Laser, a device that stimulates atoms or molecules to emit light at particular wavelengths and amplifies that light, typically producing a ...