
Laser - Wikipedia
A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation.
Laser | Definition, Acronym, Principle, Applications, & Types
Dec 4, 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 …
What Are Lasers And How Do They Actually Work? - ScienceAlert
Lasers are devices that concentrate beams of light by forcing their waveforms and frequencies to align. First developed in the 1960s to amplify microwaves, modern lasers technology can ramp …
Amazon.com: Laser
Laser Pointer, Cat Toys, Cat Laser Toy Pointer with 5 Adjustable Patterns, Dog Laser Toy, USB Recharge Laser, Long Range and 3 Modes Training Chaser Interactive Toy 10K+ bought in …
The 7 Best Sites for Free Laser Cut Files (SVG & DXF) in 2025
Dec 19, 2025 · To help you get the most out of your laser, we’ve put together a curated list of the best websites for free laser-cut files in 2025. These platforms cover everything from simple …
How do lasers work? | Who invented the laser? - Explain that Stuff
Nov 28, 2024 · Lasers are amazing light beams powerful enough to zoom miles into the sky or cut through lumps of metal. Although they seem pretty recent inventions, they've actually been …
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 …
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? | NASA Space Place – NASA Science for Kids
Sep 25, 2025 · The laser’s light waves travel together with their peaks all lined up, or in phase. This is why laser beams are very narrow, very bright, and can be focused into a very tiny spot.
The Five Main Types of Lasers | Laserax
Sep 24, 2021 · Different types of lasers are needed for different applications. Based on their gain medium, lasers are classified into five main types: gas lasers, solid-state lasers, fiber lasers, …