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  1. 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] …

  2. Laser | Definition, Acronym, Principle, Applications, & Types

    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 …

  3. 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, …

  4. 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.

  5. What Is a Laser? | NASA Space Place – NASA Science for Kids

    Sep 25, 2025 · 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 …

  6. LASER Definition & Meaning - Merriam-Webster

    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 …

  7. 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 …

  8. How Lasers Work - HowStuffWorks

    Jul 31, 2023 · But what is a laser? What makes a laser beam different from the beam of a flashlight? Specifically, what makes a laser light different from other kinds of light? How are …

  9. Medspa in Gainsville & Oakton, VI - Healthydermis MedSpa

    HEALTHYDERMIS The Art Of The Aesthetic Science Healthydermis is a full-service MedSpa and Laser Clinic specializing in Laser, Facial, Body and Skin Treatments dedicated to maximizing …

  10. 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 …