Glauber, Roy Jay

Glauber, Roy Jay,

1925–2018, American physicist, b. New York City, Ph.D. Harvard, 1949. From 1952 he was on the faculty at Harvard, where he became a professor in 1956. Glauber was the co-recipient, with John HallHall, John Lewis,
1934–, American physicist, b. Denver, Colo., Ph.D. Carnegie Institute of Technology, 1961. He has been a researcher at the National Bureau of Standards in Boulder, Colo., since 1962.
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 and Theodor HänschHänsch, Theodor Wolfgang,
1941–, German physicist, Ph.D. Heidelberg, 1969. He was a professor at Stanford from 1975 to 1986 and then became head of the Max Planck Institute for Quantum Optics, Garching, Germany, and professor at the Ludwig-Maximilians Univ., Munich.
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, of the 2005 Nobel Prize in Physics for work that advanced optics technology. In the 1960s, Glauber established the field of quantum optics and advanced Einstein's observation that light can be considered both as waves and as a stream of particles. His work helped to explain the fundamental differences between diffuse sources of light such as light bulbs, which are characterized by a mixture of frequencies that are not in phase, and the intense light of laserslaser
[acronym for light amplification by stimulated emission of radiation], device for the creation, amplification, and transmission of a narrow, intense beam of coherent light. The laser is sometimes referred to as an optical maser.
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, characterized by a single frequency in phase. Glauber's findings laid the foundation for developments in a range of fields from quantum cryptography and quantum computing to broadband optical transmission.
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