Maser - Wikipedia
A maser is a device that produces coherent electromagnetic waves (microwaves), through amplification by stimulated emission. The term is an acronym for microwave amplification by stimulated emission of radiation.
What is a MASER? - Stanford University
Basically, a man-made MASER is a device that sets up a series of atoms or molecules and excites them to generate the chain reaction, or amplification, of photons. Metastable emission states make MASERs and LASERs possible.
Maser | Microwave Amplification & Applications | Britannica
Maser, device that produces and amplifies electromagnetic radiation in the microwave range of the spectrum. The first maser was built by the American physicist Charles H. Townes. Its name is an acronym for “microwave amplification by stimulated emission of radiation.”
First Practical Maser (Microwave Laser) Is Built
2012年8月16日 · Using spare chemicals, a laser bought on eBay and angst from a late-night argument, physicists have got the world's first room-temperature microwave laser working. The achievement comes nearly 60...
maser summary | Britannica
maser , Device that produces and amplifies electromagnetic radiation in the microwave range of the spectrum. The first maser was built in 1951 by Charles H. Townes. Its name is an acronym for “microwave amplification by stimulated emission of radiation.”
Physics - Invention of the Maser and Laser
2005年1月27日 · The maser–the name stands for “microwave amplification by stimulated emission of radiation”–in turn depended on an insight that came from Albert Einstein almost 40 years earlier.
Maser Definition & Meaning - Merriam-Webster
2015年1月28日 · The meaning of MASER is a device or object that emits coherent microwave radiation produced by the natural oscillations of atoms or molecules between energy levels.
Masers | Center for Astrophysics | Harvard & Smithsonian
Masers are the lower-energy form, and occur naturally throughout the universe. The most powerful masers, known as megamasers, are found near supermassive black holes at the centers of galaxies. Molecules of water embedded in matter falling onto the black hole are powerful masers, emitting in radio wavelengths.
Maser - Simple English Wikipedia, the free encyclopedia
A maser is a device that produces light and heat by using atoms to release energy. It was invented by Charles Hard Townes in the 1950s. A maser takes the small vibrations in atoms and amplifies them to release electromagnetic radiation.
Maser, principle of operation, types of masers - Sciencealpha
2019年10月5日 · Maser is the acronym for the device formed by the first letters of each word of the phrase “Microwave Amplification by Stimulated Emission of Radiation”, which translated to English means “Amplification of microwaves using stimulated emission “.