Gary Wiederrecht is the Deputy Director of the Center for Nanoscale Materials (CNM) and the Nanoscience and Technology (NST) Division. Prior to this, Dr. Wiederrecht led the Nanophotonics Group in the CNM from 2006 to 2016 and the Nanophotonics and Biofunctional Structures Group in the CNM from 2016 to 2019. He joined Argonne in 1992 as a postdoctoral fellow and became a scientific staff member in 1995, rising to Senior Scientist in 2013. He received a bachelor of science degree in chemistry from the University of California, Berkeley in 1987 and a doctorate in physical chemistry from MIT in 1992.

He has received an R&D100 Award, the U.S. Department of Energy Young Scientist Award, the Presidential Early Career Award for Scientists and Engineers (PECASE), and the Argonne National Laboratory Distinguished Service Award. He is a Fellow of the American Physical Society.

He has authored or co-authored more than 160 peer-reviewed research articles and has six patents.

His research interests center on ultrafast excitation processes in nanoparticles, solar energy conversion and light harvesting, novel optical properties of strongly coupled hybrid nanostructures and quantum optics.