A Krypton laser is a type of gas laser that uses krypton gas as its active medium. It produces light through a process called stimulated emission, where excited krypton atoms release photons when they return to a lower energy state. Krypton lasers are known for emitting bright, colorful light, often in the green and red wavelengths. These lasers are commonly used in various applications, including scientific research, medical procedures, and industrial processes. Their ability to produce high-intensity beams makes them suitable for tasks like laser cutting and engraving, as well as in spectroscopy for analyzing materials.