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Maser
Videos
A maser is a device that produces coherent electromagnetic waves, through amplification by stimulated emission. The term is an acronym for microwave amplification by stimulated emission of radiation.
The first prototype ammonia maser in front of its inventor Charles H. Townes. The ammonia nozzle is at left in the box, the four brass rods at center are the quadrupole state selector, and the resonant cavity is at right. The 24 GHz microwaves exit through the vertical waveguide Townes is adjusting. At bottom are the vacuum pumps.
The first prototype ammonia maser in front of its inventor Charles H. Townes. The ammonia nozzle is at left in the box, the four brass rods at center
Aurorae on the north pole of Jupiter generate cyclotron masers (Hubble)
Aurorae on the north pole of Jupiter generate cyclotron masers (Hubble)
Theodore Maiman
Videos
Theodore Harold Maiman was an American engineer and physicist who is widely credited with the invention of the laser. Maiman's laser led to the subsequent development of many other types of lasers. Th
Maiman with the world's first laser in 1985
Maiman with the world's first laser in 1985
Maiman and his father Abe
Maiman and his father Abe
Maiman with his laser in July 1960
Maiman with his laser in July 1960
World's first laser
World's first laser