M. Chergui was assistant Lecturer of Physics at the
Université Sorbonne Paris Nord between 1980 and 1982, then research assistant at the
Centre National de la Recherche Scientifique (CNRS) between 1982 and 1989. From 1987 till 1993, he worked at the Institute for Experimental Physics of the
Free University of Berlin, first as a postdoc, then as senior research assistant. In 1993 he was appointed full professor of Experimental Condensed Matter Physics at the
University of Lausanne, where he stayed until 2003, to move to the Ecole Polytechnique Fédérale de Lausanne (
EPFL) as Professor of Chemistry and Physics and head of the Laboratory of Ultrafast Spectroscopy at
EPFL's School of Basic Sciences. He founded the Lausanne Centre for Ultrafast Science (LACUS) at the
EPFL in 2016 and was its director until 2021. In 2022, he retired and became Honorary Professor of the EPFL and group leader at the
Elettra Sincrotrone Trieste (Italy). He has been Editor-in-Chief of the journal
Chemical Physics between 2009 and 2014. He then founded the journal "Structural Dynamics" (AIP Publishing) and was its Editor-in-Chief between 2014 and 2020. He is mostly known for pioneering developments in ultrafast (picosecond-femtosecond) X-ray spectroscopies, and ultrafast multidimensional deep-ultraviolet spectroscopy, which he utilised to solve scientific questions in Physical (Bio)Chemistry and in Materials Science. == Honours and awards ==