1. Université de Toulouse, UPS, Laboratoire Collisions Agrégats Réactivité, IRSAMC, F-31062 Toulouse, France
2. CNRS, UMR 5589, F-31062 Toulouse, France
3. The Linac Coherent Light Source, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
4. Institute of Applied Physics, University of Bern, Sidlerstr. 5, 3012 Bern, Switzerland
5. Department of Applied Physics, Stanford University, Stanford, California 94305, USA
6. Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
7. Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551, USA
8. Mesa Photonics, LLC., 1550 Pacheco St., Santa Fe, New Mexico 87505, USA
9. The PULSE Institute for Ultrafast Energy Science, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA