University of California, Irvine

IMS and MSE, Georgia Institute of Technology

Northwestern University

ICREA and Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST

Head of group, full professor, Central Facility for Electron Microscopy, Ulm University

University of Tennessee

University of Houston

University of Michigan

Professor at University of Illinois at Chicago

Associate Professor, Department of Physics, University of South Florida, Tampa