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Robert N Hall

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Covid-19
Institutions  General Electric
Awards  Marconi Prize
Fields  Applied Physics
Role  Engineer
Name  Robert Hall

Robert N. Hall httpsiytimgcomvi3B1P9ERCaxghqdefaultjpg
Born  December 25, 1919 (age 96) New Haven, Connecticut, U.S. (1919-12-25)
Alma mater  California Institute of Technology
Known for  Demonstration of the first semiconductor laser Invention of a magnetron
Notable awards  Marconi Prize (1989) National Inventors Hall of Fame (1994)
Education  California Institute of Technology

Laser 50th anniversary robert n hall recalls the diode laser


Robert Noel Hall (December 25, 1919 – November 7, 2016) was an American engineer and applied physicist. He demonstrated the first semiconductor laser, and invented a type of magnetron commonly used in microwave ovens. He also contributed to the development of rectifiers for power transmission.

Contents

Robert N. Hall OralHistoryRobert N Hall Engineering and Technology History Wiki

Biography

Robert N. Hall Robert N Hall Marconi Society

Robert N. Hall was born on December 25, 1919 in New Haven, Connecticut. He was first inspired by his inventor uncle, who showed him the wonders of small inventions and experimentation. After long studies at his local library, Hall decided to attempt controlled experiments of his own with his mother's approval. He built an eight-inch telescope which produced a close-up view of Saturn. Later on, an interviewer from California Tech visited him and offered a scholarship to attend the university. Hall studied at California Institute of Technology for three years but had to leave for financial reasons. After working at Lockheed Aircraft as a tester, he returned to Caltech. to finish up his studies and obtain his physics degree. Then General Electric hired him as a test engineer at Schenectady, NY. After four years at G.E., under the advice of Harper North, Hall obtained a Research Council Fellowship and returned to Caltech. He graduated in 1948 with his Ph.D. and returned to G.E. Schenectady research labs that summer.

While studying the characteristics of p-i-n diodes used as power rectifiers, Hall had a key insight which resulted in his being co-credited with William Shockley and W. T. Read, Jr., for the analysis of nonradiative carrier recombination in semiconductors. Hall developed the semiconductor laser in 1962, while working at General Electric in Schenectady, New York. In the 1970s, Hall's work focused on photovoltaics and solar cells. He retired in 1987 having been granted 43 U.S. patents during his career.

Hall was elected to the National Academy of Engineering in 1977, and to the National Academy of Sciences in 1978. He was inducted into the National Inventors Hall of Fame in 1994. Hel died on November 7, 2016 at the age of 96.

References

Robert N. Hall Wikipedia


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