EUSTACE L. DERENIAK, PhD, is Professor in the Optical Sciences Center and the Department of Electrical & Computer Engineering of the University of Arizona. Before joining the university faculty in 1978, he spent many years in industrial research with Raytheon, Rockwell International, and Ball Brothers Research Corporation. He is coauthor of Optical Radiation Detectors and author or coauthor of more than 100 refereed articles. He has served as visiting professor with the U.S. Army and Air Force, research associate with the Air Force's Rome Air Development Center, and consultant to the University of Hawaii Institute for Astronomy. GLENN D. BOREMAN, PhD, is Associate Professor of Electrical Engineering at the University of Central Florida's Center for Research & Education in Optics and Lasers. A former visiting research scientist with McDonnell Douglas Astronautics Company, the U.S. Army Night Vision Laboratory, and Texas Instruments Research Center, he received his PhD in optical sciences from the University of Arizona. Professor Boreman is author and coauthor of 45 refereed journal articles on optical detectors and related topics.