Akira Tonomura

Akira Tonomura (Japanese外 村 彰, Tonomura Akira, born April 25, 1942 in Nishinomiya, Hyōgo Prefecture, Japan, † May 2, 2012 ) was a Japanese physicist and a pioneer of electron holography and in the observation of the Aharonov -Bohm effect ( 1986).

Life

Tonomura studied physics at the University of Tokyo and was from 1965, scientists in the Hitachi laboratories. In 1999 he received the status on a Hitachi Fellows.

He had to produce a leading role in the development of techniques for the transmission electron microscope, developing methods coherent electron beams, and in irradiation of matter with electrons not only the information from the intensity (as in ordinary transmission electron microscopes ) but also for to exploit the phase (electron holography ). He observed using these methods as the Aharonov -Bohm first effect and also the motion of the magnetic vortex lines in superconductors.

He was honored with the Benjamin Franklin Medal in 1999; He was a member of the Japan Academy of Sciences and a foreign member of the National Academy of Sciences ( 2000). In 1982 he was awarded the Nishina Prize.

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