Jacques Peretti is CNRS Research Director at École Polytechnique in France. He obtained his PhD in Physics from Université Paris-Sud Orsay in 1992. After a one-year postdoc stay at Freie Universität Berlin he obtained a permanent position at the CNRS. In 1990, He received the Young Author Best Paper Award from IBM. In 1995, he received the CNRS Bronze Medal. Since 2003, he leads the Electrons-Photons-Surfaces group of the Condensed Matter Physics Lab at Ecole Polytechnique. His main research interests are in the physics of semiconductors. He developped original spectroscopy and microscopy techniques to investigate hot-carrier transport, recombination processes and spin-dependent phenomena in semiconductor compounds and devices.