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 | 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 …
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.
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, …
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 …
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 …
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 …
Laser Skin Resurfacing: Benefits, Side Effects, and Average Cost
Jun 12, 2023 · Laser skin resurfacing also known as laser peel, laser vaporization or lasabrasion, removes skin layer by layer with precision.
Laser classification table - Laser Safety Facts
The detailed information given below is for laser light that is visible -- between 400 and 700 nanometers -- and for an unintentional exposure of less than 1/4 second.
The Best Laser Printers We've Tested for 2025 | PCMag
Oct 2, 2025 · A quality laser printer delivers unparalleled speed, pristine text, and reliable paper handling. Find the right option for your home or office from our list of tested picks.