Wolfgang Theobald is a Senior Scientist at LLE and an Associate Professor in the department of Mechanical Engineering at the University of Rochester. He leads the OMEGA Experiments Group, which is responsible for conducting direct-drive implosion experiments on OMEGA with cryogenically layered deuterium–tritium targets and direct-drive implosion experiments at the National Ignition Facility. The group is also responsible for developing new diagnostics for x rays, neutrons, and particles to study multidimensional effects on hot-spot formation and cold-fuel asymmetries. Dr. Theobald served as Principal Investigator for many direct-drive experiments including the exploration of the shock-ignition and fast-ignition concepts. Previous work included studies of nonlinear optics in plasmas, high-order harmonic generation, x-ray spectroscopy, and femtosecond laser–plasma interaction. Dr. Theobald received a fellowship in the division of plasma physics in 2018 and the Lev D. Landau and Lyman Spitzer Jr. Award for outstanding contributions to plasma physics in 2020. He graduated from the Johannes-Gutenberg University of Mainz, Germany, in 1991 with a Diploma in Physics, received his Ph.D. in Physical Chemistry at the Georg-August University, Göttingen, Germany in 1994, and in 2001 his habilitation in experimental physics in the department of Physics and Astronomy at the Friedrich-Schiller University Jena, Germany. He joined LLE in 2003.