Laser | Definition, Acronym, Principle, Applications, & Types
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 …
激光 - 维基百科，自由的百科全书
激光 （英語： laser，新加坡称 镭射，香港称 激光/雷射，台湾称 雷射）是 英文 “ 受激辐射 产生的 光放大 ”（Light Amplification by Stimulated Emission of Radiation）的 缩写，指透过刺激 原 …
激光（受激辐射光放大）_百度百科
1957年：Townes的博士生Gordon Gould创造了“laser”这个单词，从理论上指出可以用光激发原子，产生一束相干光束，之后人们为其申请了专利，相关法律纠纷维持了近30年。
激光 - 搜狗百科
Dec 5, 2024 · 激光（LASER）是原子受激辐射的光，于1916年由爱因斯坦首次发现。 激光是20世纪以来继核能、电脑、半导体之后，人类的又一重大发明，具有亮度高、颜色纯、能量大的特 …
How do lasers work? | Who invented the laser? - Explain that Stuff
Nov 28, 2024 · An easy-to-understand explanation of how lasers work, with a simple diagram showing what's inside a laser.
NIF's Guide to How Lasers Work
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. That extra energy “excites” the …
What is a laser? | Laser Applications | Spectral School
Dec 11, 2024 · What is a Laser? A laser is an intense light source that is coherent, directional, and monochromatic. This means that the phases of the light waves are aligned, the waves …
What Is a Laser? How Does It Work? - Optics Mag
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 …
Laser - Wikipedia
A laser differs from other sources of light in that it emits light that is coherent. Spatial coherence allows a laser to be focused to a tight spot, enabling uses such as optical communication, [6] …
What Are Lasers And How Do They Actually Work? - ScienceAlert
The most powerful laser designed to date can be found at the European Extreme Light Infrastructure facility in Romania. Its lasers are some of the most intense in the world, …