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

Mar 24, 2024 · Engineer Gordon Gould at Columbia University coined the handy acronym "laser" – Light Amplification by Stimulated Emission of Radiation. The maser paved the way, but laser …

Oct 13, 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 …

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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 …

Nov 28, 2024 · Lasers are amazing light beams powerful enough to zoom miles into the sky or cut through lumps of metal. Although they seem pretty recent inventions, they've actually been …

May 24, 2025 · When you think of lasers, the mind might leap to sci-fi weapons, barcode scanners at supermarkets, or the pointer used during a professor’s lecture. But lasers are far more than …

Sep 24, 2021 · Based on their gain medium, lasers are classified into five main types: Additionally, these five types of lasers can be divided into subcategories based on their mode …

“Lazar” is an old English term used to describe a person affected by a contagious disease, and it is not commonly used in modern language. “Lazer” is often used as an alternative spelling of …

Apr 27, 2025 · “Laser” or “lazer”? We break down the most common spelling errors and explain why only one spelling is correct.