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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] laser cutting, and lithography
Laser | Definition, Acronym, Principle, Applications, Types | Britannica 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 covers an extremely limited range of visible, infrared, or ultraviolet wavelengths
激光的原理 | 基础知识 | 刻印课堂 | 基恩士中国官方网站 LASER 是由英文“Light Amplification by Stimulated Emission of Radiation” 的各单词首字母组成的缩写词，意思是“通过受激发射光扩大”。
Amazon. com: Laser Advanced Long-Range Laser Pointer High Power - Rechargeable Green Laser Pointer with Removable Star Cap - Versatile Laser Pen for Astronomy, Construction, Presentations, and Outdoor Adventures 1K+ bought in past month Add to cart Best Seller
激光器的工作原理、激光技术的基本原理 - Trotec Laser 激光加工原理 激光加工原理 - 基础知识 在以下视频中，我们将简单向您介绍激光加工的基本原理及激光器的结构。 How does a Laser work? Basics of Laser Technology explained Trotec Laser
What is a laser? | Laser Applications | Spectral School 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 travel in a single direction, and they emit a narrow range of wavelengths 1
Laser - Introduction - What is a Laser? Laser emits light through a process called stimulated emission of radiation which amplifies or increases the intensity of light Some lasers generate visible light but others generate ultraviolet or infrared rays which are invisible