Chieh-Hsiung Kuan（管傑雄） was born in Taipei, Taiwan, in 1962. He received the B. S. degree in electrical engineering from National Taiwan University in 1985, the M. S. A. degree and the Ph.D. degree in electrical engineering from Princeton University in 1990 and 1994 respectively. During his Ph.D. work, he was major in the dark current and noise characteristics of the infrared hot-electron transistors and cooperated with the U. S. Army Laboratory at Fort Monmouth in New Jersey. He joined the Department of Electrical Engineering, National Taiwan University in 1994, as an associate professor and was promoted as full professor in 2002. His current research interests include the infrared photodiode for room temperature operation, the quantum well infrared photodetector and laser, superlattice infrared photodetector and the associated multi-color detector, and the topics on how to measure and suppress the noise in the detectors. He has set up E-beam and high-resolution microscope systems to research further in advanced lithography technology. The infrared detector, composed of two superlattices separated by a wide barrier and proposed by Dr. Kuan in 2002, was cited as a newsbreak in the June issue of Laser Focus World. Dr. Kuan is a member of IEEE Society and Phi-Tau-Phi Honored Scholar Society.