연구하는 인생/Natural Science 41

Light Amplification by Stimulated Emission of Radiation

Laser From Wikipedia, the free encyclopedia United States Air Force laser experiment Laser beams in fog, reflected on a car windshield A laser is a device that emits light (electromagnetic radiation) through a process of optical amplification based on the stimulated emission of photons. The term "laser" originated as an acronym for Light Amplification by Stimulated Emission of Radiation. The em..