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Laboratory Leadership Team

photo of Steve Dierker

Steven Dierker

Associate Laboratory Director for Photon Sciences

photo of Steve Dierker

Steven Dierker, a forefront scientist and administrator in synchrotron light research, is the Associate Laboratory Director for Photon Sciences at the U.S. Department of Energy’s Brookhaven National Laboratory. Dierker, was previously Chair of the National Synchrotron Light Source (NSLS) Department.

In December of 2005, Dierker was also named Project Director of the National Synchrotron Light Source II (NSLS-II) Project. NSLS-II will meet critical scientific challenges of the future, provide state-of-the-art technology for research and play a pivotal role in fostering economic growth in the northeastern United States.

After earning B.S. degrees in both physics and electrical engineering in 1977 from Washington University, Dierker earned both an M.S. and Ph.D. in physics from the University of Illinois, Urbana-Champaign, in 1978 and 1983, respectively. In 1983, he joined the Semiconductor and Chemical Physics Research Department at AT&T Bell Laboratories (now Lucent Technologies), and, in 1990, he joined the University of Michigan, where he was Professor of Physics and Applied Physics. He joined Brookhaven in May 2001 to become Chair of the NSLS.

Since 1992, Dierker has been a member of the NSLS Users Group, and he performed initial experiments at the NSLS to develop a novel synchrotron technique called x-ray photon correlation spectroscopy, which uses coherent, or highly ordered, synchrotron beams to study colloidal systems, or particles dispersed in a solid, liquid or gaseous medium, and polymers.

Since 1996, Dierker has been a member of the Advanced Photon Source (APS) Users Organization at Argonne National Laboratory, and he chaired that organization from 1998-2000. He also helped to plan the construction, design and operation of beam lines at the APS, with funding from the U.S. Department of Energy and the National Science Foundation.