Word: masers
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Dates: during 1960-1969
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...light, all of whose waves are in step and all of which move parallel .to the sides of the rod. A few of those waves escape through the silver of one mirror, which is not quite thick enough to be totally opaque, and form the pencil beam of red maser light...
...Mile Beam. The light comes in short bursts a few millionths of a second apart, and they make a flash that lasts less than a thousandth of a second. But the light is incredibly bright and concentrated. When Bell scientists set up the maser at Holmdel, N.J. and pointed its beam to hit the Murray Hill laboratory 25 miles away, the red flashes could be clearly seen with the naked eye, and they registered strongly on photomultiplier tubes. Bell Labs, whose primary interest is in communication, looks forward to perfecting long-reaching maser beams that could carry everything from telephone...
Such use is far in the future. The present maser does not operate continuously; and it cannot be used as an amplifier. When more efficient optical masers really get working, their use will be almost unlimited. Items...
...Single-frequency maser light may be used to measure long distances with the millionth-of-an-inch accuracy now possible only in laboratories...
...Large volumes of maser light or infrared may control delicate selective chemical reactions, perhaps separating one atomic isotope from another. The most interesting isotope to separate: uranium 235 for nuclear weapons or peaceful power...