Professor Yasuhiko Arakawa, a specially appointed professor (emeritus professor), was awarded the Order of the Sacred Treasure, Gold and Silver Star, in the autumn 2026 honors. He was recognized for his significant contributions, from proposing the idea of “quantum dot” structures that confine electrons in three-dimensional microscopic semiconductors to their practical application in semiconductor lasers. Quantum dot lasers are highly regarded for their excellent high-temperature performance among semiconductor lasers, and they are also attracting attention in the field of “opto-electronic convergence.” The announcement was made on November 3, and a formal presentation ceremony will be held at the Imperial Palace on the 10th.