A laser is a special kind of light! 🌈✨ It's very bright and can shine in one straight line. People use lasers for fun (like in light shows) and for important things (like doctors fixing eyes).
Lasers are different from normal light because they don’t spread out like a flashlight. They stay super focused! 🔦
A laser is a powerful beam of light that stays in a straight line and doesn’t spread out. The word "laser" stands for Light Amplification by Stimulated Emission of Radiation. 🤓
Lasers are used in many ways: in DVD players, barcode scanners, and even to cut metal! Surgeons use them for precise operations because they’re so accurate.
Unlike a flashlight, laser light is one color (monochromatic) and all the light waves move together (coherent). That’s why it looks so sharp!
A laser is a device that emits a narrow, intense beam of light through a process called stimulated emission. Unlike ordinary light (which has many wavelengths and scatters), laser light is:
Lasers work by exciting atoms in a medium (like gas, crystal, or semiconductor), causing them to release photons. These photons bounce between mirrors, amplifying until they escape as a laser beam.
Applications range from fiber-optic communication to laser surgery, manufacturing, and even measuring distances to the Moon! 🌕