D. S. Citrin received the B.A. degree from Williams College, Williamstown, MA, USA, in 1985, and the M.S. and Ph.D. degrees from the University of Illinois Champaign, IL, USA, in 1987 and 1991, respectively, all in physics, where he researched the optical properties of quantum wires. From 1992 to 1993, he was a Post-Doctoral Research Fellow with the Max Planck Institute for Solid State Research, Stuttgart, Germany, where he was involved in exciton radiative decay in low-dimensional semiconductor structures. From 1993 to 1995, he was a Center Fellow with the Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, MI, USA, where he addressed ultrafast phenomena in quantum wells. From 1995 to 2001, he was an Assistant Professor of Physics with Washington State University, Pullman, WA, USA, and joined the faculty of the Georgia Institute of Technology (Georgia Tech), Atlanta, GA, USA, where he is currently a Professor with the School of Electrical and Computer Engineering. In addition, he coordinates the research effort on chaos-based communications with the Unité Mixte Internationale, Georgia Tech-Centre National de la Recherche Scientifique Laboratory, Georgia Tech Lorraine, Metz, France. His research interests include nanophotonics, terahertz science and technology, and chaosbased secure communications. He has served as an Associate Editor of the IEEE JOURNAL OF QUANTUM ELECTRONICS. He was a recipient of the Presidential Early Career Award for Scientists and Engineers and the Friedrich Bessel Prize from the Alexander von Humboldt Stiftung.