1. Laboratory for Ultrafast Microscopy and
Electron Scattering, Lausanne Center for Ultrafast Science (LACUS), École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
2. Physics
Institute, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
3. Supramolecular Nanomaterials and Interfaces Laboratory, Institute
of Materials, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland