Broglie, Louis Victor de (1892-1987), a French physicist. While a graduate student at the Sorbonne in 1923, de Broglie suggested that electrons have wave properties similar to those of light. His theory applied Einstein's theory of relativity and Max Planck's quantum theory to the atom. This work, which won de Broglie the Nobel Prize for physics in 1929, opened the field of wave mechanics, which helps explain atomic structure.

From 1932 to 1962 de Broglie was professor of theoretical physics at the Henri Poincare Institute of the University of Paris. He was elected to the French Academy in 1944. He later served as an adviser to the French Atomic Energy Commission.