Kristina M. Johnson served as Under Secretary of Energy, U.S. Department of Energy from May 2009 until October 2010. Prior to this appointment, Dr. Johnson was Provost and Senior Vice President at The Johns Hopkins University (2007-2009), Dean of Engineering at Duke University (1999-2007) and Professor of ECE at the University of Colorado, Boulder (1985-1999). She received her B.S, M.S.E.E., and Ph.D. in electrical engineering from Stanford University and was a NATO post-doctoral fellow at Trinity College, Dublin, Ireland. Kristina M. Johnson has been a Director of AES since April 2004. Dr. Johnson has been Provost and Senior Vice President for Academic Affairs at the Johns Hopkins University since September 2007. Previously, she served as the Chief Academic and Administrative Officer of the Edmund T. Pratt, Jr., School of Engineering at Duke University ("Duke"), joining Duke in July 1999. Prior to joining Duke, Dr. Johnson served on the faculty at the University of Colorado at Boulder, from 1985-1999 as a Professor of Electrical and Computer Engineering, and as a co-founder and Director (1993-1997) of the National Science Foundation Engineering Research Center for Optoelectronic Computing Systems Center. Dr. Johnson received her BS with distinction, MS and PhD from Stanford University in Electrical Engineering. She is an expert in liquid crystal electro-optics and has over forty patents or patents pending in this field. Dr. Johnson currently serves on the Boards of Directors of Minerals Technologies, Inc., Boston Scientific, and Nortel Networks. Dr. Johnson serves on the Compensation Committee of the Board.