Yasuhiko Arakawa Yasuhiko Arakawa Yasuhiko Arakawa (Japanese , "Arakawa Yasuhiko"; born 6 November 1952) is a Japanese physicist. His research focuses on semiconductor physics, including growth of nanostructures and their optoelectronic applications. Among his main achievements are the proposal of the concept of quantum dots and their application to quantum dot lasers, the observation of exciton-polariton Rabi-splitting in a semiconductor microcavity, or, recently, the first 3D photonic crystal nanocavity lasers with quantum dot gain. Yasuhiko Arakawa received a B.S. degree in 1975 and a Ph.D. degree in 1980, respectively, from the University of Tokyo, both in Electronics Engineering. In 1981 he became
Sumida River being manufactured by Korean prisoners of war. Sandra Andacht wrote in 1987, "Sumida gawa wares have found great popularity with collectors, dealers and investors. The motifs conform to the general Western concepts of what Oriental designs are expected to depict; writhing dragons, Buddhist disciples, mythological and legendary beings and creatures. Thus these wares are sought after and prices (here in the States) are quite high, even for pieces in less than perfect condition." The "Noh" play "Sumida-gawa", which the British composer Benjamin Britten saw while visiting Japan in 1956, inspired him to compose "Curlew River" (1964), a dramatic work based