Laser
= Laser
{wiki=Laser}
A laser is a device that emits light through a process of optical amplification based on the stimulated emission of radiation. The term "laser" is an acronym for "Light Amplification by Stimulated Emission of Radiation." Lasers produce coherent light, which means that the light waves are organized in a consistent phase relationship, resulting in a narrow, focused beam that can be very intense.