Herbert Kroemer, Nobel winner who developed laser tech, dies at 95

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Herbert Kroemer, Nobel winner who developed laser tech, dies at 95
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The German-born physicist developed a new kind of semiconductor that became crucial to the development of cellphones, CD players and fiber-optic networks.

Herbert Kroemer in the lab at the University of California at Santa Barbara in 2000. He was awarded a share of the Nobel Prize in physics that year. Herbert Kroemer, a Nobel Prize-winning physicist who spearheaded the development of a new kind of semiconductor, leading to Information Age advances at the heart of everything from bar-code scanners, CD players and cellphones to satellite communications and fiber-optic networks, died March 8 at 95.

The devices “are used worldwide in fiber optic networks and enabled the internet, transforming the world,” his colleague John Bowers, director of UC Santa Barbara’s Institute for Energy Efficiency, said in After graduating from high school in 1947, he enrolled at the University of Jena, where he studied under the physicist Friedrich Hund during the city’s postwar Soviet occupation. As the social climate became increasingly repressive, lecture attendance dwindled; some of his more liberal classmates vanished without explanation.

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