Our research
The STEM group at the Laboratoire de Physique des Solides explores nano to atomic scale physics with ultra-high energy resolution electron spectroscopy
Our equipment
We are equiped with state of the art electron spectro microscopes fitted with various home-made cutting edge developments permitting original EELS, cathodoluminescence, PINEM or 4D microscopy modes.
Our networks
We are part of several french and european networks and projects.
Latest news and research highlights
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Odile Stéphan elected to the French Academy of Sciences
We are delighted to announce the election of Odile Stéphan, a member of the STEM group which she led from 2009 to 2021, to the Académie des sciences. Odile Stéphan, …
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Florian Castioni joins the STEM team as a permanent CNRS researcher
The Orsay STEM groupe is pleased to welcome Florian Castioni as new permanent CNRS researcher. Originally from the Var region, Florian completed all of his engineering studies at INSA Lyon,
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Strong and Weak Coupling Nanophysics with Free Electron Beams
We have recently wrote a short review in Advanced Optical Materials, which just got published open acces. This short review paper focuses on the study of the coupling between optical
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Malo Bézard awarded the 2025 Favard Prize of the french microscopy society
Our former PhD student Malo Bezard in STEM group at Laboratoire de Physique des Solides (LPS), has received the Favard Prize from the Société française des microscopies (Sfµ) for his
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ERC Advanced Grant 2024: The STEM Group awarded for the FreeQCC project
STEM group member Mathieu Kociak, CNRS research director at the Laboratoire de Physique des Solides (CNRS / Université Paris-Saclay), has been awarded an ERC Advanced Grant 2024 from the European
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Roadmap for with 2D Materials
Triggered by advances in atomic-layer exfoliation and growth techniques, along with the identification of a wide range of extraordinary physical properties in self-standing films consisting of one or a few
Open positions
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Ph. D position: Electron-photon Correlations for Probing Optical Excitations Nanometer- Scale Dynamics
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Master internship: human bone pathologies investigated by electron spectroscopy at the nanoscale.
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Master 2 internship: STEM-EELS and 4D-STEM Characterization of Quantum Materials and Interfaces
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Ph D and post-doc Positions in quantum optics with fast electrons






