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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
Лазер. Принцип работы, виды и применение ☑️Что такое лазер и где он применяется? Особенности, свойства излучения и принцип работы Виды лазеров и области применения лазерных технологий
Лазер — Википедия Ла́зер (от англ laser, акроним от Light Amplification by Stimulated Emission of Radiation — «усиление света посредством вынужденного излучения »), или опти́ческий ква́нтовый генера́тор, — устройство, преобразующее
Laser - Light, Amplification, Coherence | Britannica The combination of laser medium and resonant cavity forms what often is called simply a laser but technically is a laser oscillator Oscillation determines many laser properties, and it means that the device generates light internally
Laser - Simple English Wikipedia, the free encyclopedia A laser can be made so all the light travels in one direction, so the energy of the light stays as a narrow beam of collimated light that does not spread as much as in a flashlight (electric torch)
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
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, generating insanely brief pulses of photons, protons, neutrons, and neutrinos with incredible energy
What Is a Laser? | NASA Space Place – NASA Science for Kids Because laser light stays focused and does not spread out much (like a flashlight would), laser beams can travel very long distances They can also concentrate a lot of energy on a very small area