突发讣告：周炳琨院士逝世

Core Viewpoint - The news reports the passing of Zhou Bingkun, a prominent scientist and educator in the field of laser and optoelectronics, who contributed significantly to the development of these technologies in China [1][5]. Group 1: Personal Background - Zhou Bingkun was born in 1936 and graduated from Tsinghua University in 1956, where he later became a faculty member [3]. - He was elected as an academician of the Chinese Academy of Sciences in 1991 and as an academician of the Third World Academy of Sciences in 2001 [3]. Group 2: Professional Contributions - Zhou served in various significant roles, including as the leader of the National 863 Program's "Optoelectronic Devices and Integrated Technology" expert group from 1987 to 1996, and as the deputy director of the Semiconductor Research Institute of the Chinese Academy of Sciences [4]. - He was instrumental in the development of high-efficiency, long-lifetime, narrow-linewidth, and frequency-stable semiconductor laser-pumped solid-state lasers during his visit to Stanford University in 1984, which opened new avenues in solid-state laser technology [4]. - Zhou led research and educational efforts in information optoelectronics, achieving notable results in crystal fiber growth, optical fiber amplifiers, wavelength division multiplexing, and time division multiplexing optical communication technologies [4].