Jichai Jeong He received a BS degree from Korea University, Seoul, South Korea, in 1980, a MS degree from KAIST, Daejeon, South Korea, in 1982, and a PhD in Electrical Engineering from Carnegie Mellon University, Pittsburgh, PA, USA, in 1988. From 1982 to 1985, he was a researcher at the Korea Institute of Science and Technology. From 1988 to 1993, he was a member of the technical staff with AT&T Bell Laboratories, Murray Hill, NJ, USA, where he worked on optoelectronic integrated circuits and semiconductor lasers for optical communications. From 1993 to 1995, he was a faculty member of the Electrical Engineering Department, Pohang University of Science and Technology, Pohang, South Korea. From 1995 to 2007, he was a faculty member of the Radio Engineering Department, Korea University. Since 2008, he has been with the Department of Brain and Cognitive Engineering, Korea University, where he is currently a professor. His current research interests include functional infrared biophotonic spectroscopy, optical coherence tomography, and adaptive optical fibre sensing.