The maser is a device similar to the laser, but emitting microwave radio waves rather than light. In 1953, Charles H. Townes, James P. Gordon, and Herbert J. Zeiger invented the maser, which earned them the Nobel Prize in Physics in 1964. Research continued into the 1950s, leading to the optical maser, or laser, for which AT&T Bell Telephone Laboratories was awarded a patent in 1960. See also laser.
Abbreviation of microwave amplification by the stimulated emission of radiation.
A device that generates or amplifies electromagnetic radiation, especially microwaves, of a coherent wavelength by stimulated emission.
A natural object or region of space that acts like a maser, as a star-forming region of intersellar space.
A device, operating at microwave frequencies, in which atoms or molecules are raised to a higher energy level and allowed to lose the energy by radiation that is emitted at a very precise frequency.
Short for microwave amplification by stimulated emission of radiation. A device that generates coherent microwaves using the same principles as a laser . Masers are used in a variety of applications, including in atomic clocks . Natural masers are found in outer space when water or other substances are excited by radiation from a star or by the energy of a collision.
(Microwave Amplification by Stimulated Emission of Radiation) A device that creates a uniform and coherent electromagnetic radiation pattern. It is similar to a laser, except that it emits microwaves or radio waves rather than light. See laser.
Origin of maser
- m(icrowave) a(mplification by) s(timulated) e(mission of) r(adiation)
From American Heritage Dictionary of the English Language, 5th Edition