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

5 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 meaning of LASER is a device that utilizes the natural oscillations of atoms or molecules between energy levels for generating a beam of coherent electromagnetic radiation usually in …

LASER definition: 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 …

LASER definition: 1. (a device that produces) a powerful, narrow beam of light that can be used as a tool to cut…. Learn more.

A laser is a narrow beam of concentrated light produced by a special machine. It is used for cutting very hard materials, and in many technical fields such as surgery and …

a device that gives out light in which all the waves oscillate (= change direction and strength) together, typically producing a powerful beam of light that can be used for cutting metal, in …

A laser emits a thin, intense beam of light that can travel long distances without diffusing or spreading out very much. Almost any light beam consists of many waves traveling in roughly …

May 29, 2025 · The word “laser” is an acronym for “light amplification by stimulated emission of radiation.” Lasers have many uses, including cutting and welding materials, measuring …

A laser is a machine that makes an amplified, single-color source of light. It uses special gases or crystals to make the light with only a single color. The gases are energized to make them emit …