6 days ago · 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 …

A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation.

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 …

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 …

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 …

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Dec 24, 2025 · “ lazer ”, in Dicionário Priberam da Língua Portuguesa (in Portuguese), Lisbon: Priberam, 2008–2025

Doctors destroyed the tumor with a laser. a device that produces a powerful narrow beam of light that can be used as a tool, for example to cut metal, to perform medical operations, etc. The …

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Jul 31, 2023 · In this article, you'll learn all about the different types of lasers, their different wavelengths and the uses to which we put them (like laser pointers). But first, let's start with …