A laser is a machine that makes an amplified, single-color source of light. It uses special gases, liquids, or crystals to make the light with only a single color. Inside a laser, atoms in a special material are first “pumped” with energy, typically from an electrical current or a bright flash of light. This pushes electrons in those atoms into a higher energy state, like pulling back a spring. Discover a wide range of laser products on Amazon. Browse pointers, levels, engravers, hair removal devices, and more for every need. A laser is not just light; it is light disciplined, sharpened, and focused into a beam so pure and precise that it can travel across the Moon, cut through steel, perform delicate eye surgery, or carry billions of internet messages in a single second. The most powerful laser designed to date can be found at the European Extreme Light Infrastructure facility in Romania. Its lasers are some of the most intense in the world, generating insanely brief pulses of photons, protons, neutrons, and neutrinos with incredible energy. Laser science is principally concerned with quantum electronics, laser construction, optical cavity design, the physics of producing a population inversion in laser media, and the temporal evolution of the light field in the laser. This is a list of laser types, their operational wavelengths, and their applications. Thousands of kinds of laser are known, but most of them are used only for specialized research. 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 emission generally covers an extremely limited range of visible, infrared, or ultraviolet wavelengths. The word LASER is an acronym for Light Amplification by Stimulated Emission of Radiation. Laser is a device that amplifies or increases the intensity of light and produces highly directional light. Reserva tus vuelos con LASER Airlines. Líder en puntualidad y servicio en Venezuela. Conecta con los mejores destinos nacionales e internacionales con total confianza.