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Florent Houdellier wins the Prix Ernst Ruska 2019

The Ernst Ruska 2019 Prize from the German Microscopy Society is awarded to Dr. Florent Houdellier, Research Engineer at CEMES-CNRS in Toulouse.

This prize is awarded for his contribution to the development of a new ultra-bright pulsed TEM microscope based on cold FEG technology. Thanks to the unrivaled brightness of this source, this microscope has been used to acquire the first holograms with femtosecond electrons pulses which motivated the attribution of this prize.

His work has been done in close collaboration with Dr. Arnaud Arbouet (CEMES, Toulouse) and Dr. Giuseppe Mario Caruso (CEMES, Toulouse), Dr. Sébastien Weber (CEMES, Toulouse) and Dr. Mathieu Kociak (LPS, Orsay).1

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Florent Houdellier, Prix Ernst Ruska 2019, lors du changement de la source à émission de champ 200kV

The award will be presented at the opening ceremony of the MC2019 microscopy conference in Berlin on 2 September 2019.

The prize is named after Prof. Dr. Ernst August Friedrich Ruska, Nobel laureate and inventor of the electron microscope. This international prize is awarded by the German Society for Electron Microscopy (Deutsche Gesellschaft für Elektronenmikroskopie, DGE) every two years for outstanding achievements in the field of electron microscopy.


Florent Houdellier, Giuseppe Mario Caruso, Sebastien Weber, Mathieu Kociak and Arnaud Arbouet are also laureates of the "European Microscopy Society (EMS) Outstanding Paper Award, Technical Instrument and Development" for their article published on these works in Ultramicroscopy1.
The European Microscopy Society (EMS) Outstanding Paper Award will be presented at the MCM2019 Microscopy Conference in Belgrade on 15-20 September 2019.



  1. F. Houdellier, G.M. Caruso, S. Weber, M. Kociak, A. Arbouet, “Development of a high brightness ultrafast Transmission Electron Microscope based on a laser-driven cold field emission source” Ultramicroscopy 186 (2018) 128–138.
    DOI : 10.1016/j.ultramic.2017.12.015


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Florent Houdellier