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Dr. James P. Gordon, co-inventor of the maser and a seminal contributor to optics and quantum electronics, died in Rumson, N.J., on June 21. He was 85. In 1954, as a student of Charles Hard Townes at Columbia University, Gordon analyzed, designed, built and successfully demonstrated the maser (microwave amplification by stimulated emission of radiation) with Townes and Herbert Zeiger. Their ammonia maser, based on Einstein’s principle of stimulated emission, laid the groundwork for the creation of the laser. Gordon spent his entire career at AT&T Bell Labs, from 1955 until his...Read full article

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    Published: September 2013
    Glossary
    maser
    An acronym for microwave amplification by stimulated emission of radiation. Predecessor to the laser, the maser or 'microwave laser' was the first device to produce coherent electromagnetic waves, and was done at microwave frequencies through amplification by stimulated emission. A laser (light amplification by stimulated emission of radiation) is a maser that works over a broader range of higher frequency photons in the ultraviolet and visible portion of the electromagnetic spectrum.
    raman spectroscopy
    Raman spectroscopy is a technique used in analytical chemistry and physics to study vibrational, rotational, and other low-frequency modes in a system. Named after the Indian physicist Sir C.V. Raman who discovered the phenomenon in 1928, Raman spectroscopy provides information about molecular vibrations by measuring the inelastic scattering of monochromatic light. Here is a breakdown of the process: Incident light: A monochromatic (single wavelength) light, usually from a laser, is...
    Alain CouderBasic ScienceBell LabsBiophotonicsBusinesscamerasCharles TownesCoatingsColumbia UniversityCommunicationsDietmar KlennerDietmar KrachtDoughertyFiltersGregHerbert ZeigerHorst SchrageIdexImagingJames GordonJames HarpKlaus UlbrichLaser Zentrum HannoverLudger OvermeyerLZHMarissa PetersonMark WeidmanmaserOclaroOpticsPhilip FeeleyPrinceton InstrumentsProPhotonixquantum electronicsRaman spectroscopyRapidScanRaymond OglethorpeSemrockspectrographsUniversity of HannoverVolker SchmidtWilliam AsherWolfgang ErtmerLasers

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