Bloembergen, Nicolaas (nēˈkəläs blōmˈbĕrgən, –bûrgən) [key], 1920–, American physicist, b. Dordrecht, the Netherlands. Educated in the Netherlands, he began work at Harvard in 1946, first as a researcher and later as a professor. He shared the 1981 Nobel Prize in Physics with Arthur Schawlow and Kai Siegbahn for their work in laser spectroscopy. Bloembergen and Schawlow investigated matter undetectable without lasers. He had earlier modified the maser of Charles Townes.
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