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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Mar 24, 2024 · At its core, a laser utilizes atoms of a chosen gas, liquid, crystal or semiconductor that can be stimulated to release uniform packets of light called photons. The emitted particles travel …

Dec 4, 2025 · Laser, a device that stimulates atoms or molecules to emit light at particular wavelengths and amplifies that light, typically producing a very narrow beam of radiation. The emission generally …

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Jan 25, 2024 · Although both words may sound identical when spoken, only laser is the correct spelling in standard English. In this article, we will explore the origin and meaning of the word laser, explain …

Sep 25, 2025 · The letters in the word laser stand for L ight A mplification by S timulated E mission of R adiation. A laser is an unusual light source. It is quite different from a light bulb or a flash light. Lasers …

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Lasers produce coherent light through a process called stimulated emission. The laser contains a chamber in which atoms of a medium such as a synthetic ruby rod or a gas are excited to a high …

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