John F. Whitaker (S’84-M’88) received the B.Sc. degree in physics from Bucknell University, Lewisburg, PA, in 1981, and the M.Sc. and Ph.D. degrees from the University of Rochester, Rochester, NY, in 1983 and 1988, respectively. In 1989, he accepted a position as a Research Scientist in the Ultrafast Science Laboratory within the Department of Electrical Engineering and Computer Science at the University of Michigan, Ann Arbor. He is also currently the coordinator for the Ultrafast Technology area within the National Science Foundation Science and Technology Center for Ultrafast Optical Science. His research interests include the development of ultrahigh temporal response, optically-based measurement systems and their application to measurements of the response of semiconductors, superconductors, dielectrics, transmission lines, devices, and circuits on picosecond and subpicosecond time scales. He has authored or coauthored more than 50 papers and has presented nine invited talks at major conferences and symposia.