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
Nihito Arakawa Yoshitaka Katō to be crowned the East Japan Rookie King in November 2005, and won the All-Japan Rookie King Tournament in December of that year. He rematched Katō in September 2006 where he suffered his first loss in a close decision. Issei Nakaya of Hachioji Nakaya Promotions had promoted Arakawa until the end of 2014. after having visited boxing venues around the world over years. In September 2008, Arakawa faced Filipino Randy Suico for the OPBF lightweight title, but the fight ended in a majority draw. Arakawa won the Japanese lightweight title via a majority decision from Akihiro Kondō in