APPLI group (Application of ultrafast sources to solid state physics)



 The APPLI group is dedicated to the development of new femtosecond particle and radiation sources and to their use for probing ultrafast dynamics in solids. We put a special emphasis on developing high-repetition rate and reliable sources that can truly be used for probing ultrafast phenomena at the femtosecond time scale. 

The group has two main activities:

  •  Femtosecond pump-probe spectroscopy on condensed matted using photons ranging from the visible to the far Infra-Red. We also use electrons to watch atoms move in solids via Ultrafast Electron Diffraction. 





ENSTA CNRS Ecole Polytechnique