Acronym for Light Amplification by Stimulated Emission of Radiation A device that utilizes the natural oscillations of atoms or molecules between energy levels for generating coherent electromagnetic radiation in the ultraviolet, visible, or infrared regions of the spectrum
(light amplification by stimulated emission of radiation) In telecommunications, a device which produces light at a narrow range of frequencies, to generate signals used in fiber optic communications systems
an acronym of light amplification by stimulated emission of radiation A surgical tool that creates intense heat and power when focused at close range, destroying cells by vaporizing them
Light Amplification by Stimulated Emission of Radiation A device which produces light with a narrow spectral width Used in fiber optic communication systems, usually single mode, where high capacity and low attenuation are required
an acronym for light amplification by stimulated emission of radiation; an optical device that produces an intense monochromatic beam of coherent light
A laser is a machine that produces a laser beam. the first-ever laser, built in 1960. Device that produces an intense beam of coherent light (light composed of waves having a constant difference in phase). Its name, an acronym derived from "light amplification by stimulated emission of radiation," describes how its beam is produced. The first laser, constructed in 1960 by Theodore Maiman born 1927 based on earlier work by Charles H. Townes, used a rod of ruby. Light of a suitable wavelength from a flashlight excited (see excitation) the ruby atoms to higher energy levels. The excited atoms decayed swiftly to slightly lower energies (through phonon reactions) and then fell more slowly to the ground state, emitting light at a specific wavelength. The light tended to bounce back and forth between the polished ends of the rod, stimulating further emission. The laser has found valuable applications in microsurgery, compact-disc players, communications, and holography, as well as for drilling holes in hard materials, alignment in tunnel drilling, long-distance measurement, and mapping fine details
Light Amplification by Stimulated Emission of Radiation This phenomenon is brought about using devices that transform light of varying frequencies into a single intense, nearly nondivergent beam of monochromatic radiation in the visible region Lasers operate in the visible, infrared, or ultraviolet regions of the spectrum They are capable of producing immense heat and power when focused at close range and are used in surgical procedures, in diagnosis, and in physiologic studies [MeSH, 1965]
An acronym for light amplification by stimulated emission of radiation A medical instrument that produces a powerful beam of light and can produce intense heat or cool vaporization when focused at close range Lasers are often used in surgery to remove tissue
An acronym of Light Amplification by Stimulated Emission of Radiation A laser is a cavity that has mirrors at the ends and is filled with lasable material such as crystal, glass, liquid, gas, or dye These materials must have atoms, ions, or molecules capable of being excited to a metastable state by light, electric discharge, or other stimulus The transition from this metastable state back to the normal ground state is accompanied by the emission of photons which form a coherent beam
an acronym for light amplification by stimulated emission of radiation A device that uses stimulated emissions to produce a coherent beam of electromagnetic radiation
The acronym for Light Amplification by Stimulated Emission of Radiation A laser is an intense beam with very narrow band width that can produce images by electronic impulses from digital data
A laser is a narrow beam of concentrated light produced by a special machine. It is used for cutting very hard materials, and in many technical fields such as surgery and telecommunications. new laser technology
Laser is the acronym of Light Amplification by Stimulated Emission of Radiation Laser is light of special properties, light is electromagnetic (EM) wave in visible range Lasers, broadly speaking, are devices that generate or amplify light, just as transistors generate and amplify electronic signals at audio, radio or microwave frequencies Here light must be understand broadly, since lasers have covered radiation at wavelengths ranging from infrared range to ultraviolet and even soft x-ray range
the acronym for light amplification by stimulated emission of radiation A laser is an instrument that produces a powerful beam of light that can vaporize tissue
acronym for light amplification by stimulated emission of radiation; a source of concentrated coherent light generated by stimulating electronic or molecular transitions to lower energy levels
Laser is an acronym for Light Amplification by Stimulated Emission of Radiation It's a device that produces a coherent beam of optical radiation by stimulating electronic, ionic, or molecular transitions to higher levels so that when they return to lower energy levels they emit energy
A device which produces an intense, coherent, directional beam of light by stimulating electronic or molecular transitions to lower energy levels An acronym for Light Amplification by Stimulated Emission of Radiation
{i} (acronym of: Light Amplification by Stimulated Emission of Radiation) device which stimulates the atoms in a medium in order to increase electrical impulses and produce an intense concentrated beam of light