1. Institute of Applied Physics (APH); Karlsruhe Institute of Technology (KIT); 76128 Karlsruhe Germany
2. Institute of Photonics and Quantum Electronics (IPQ) and Institute of Microstructure Technology (IMT); Karlsruhe Institute of Technology (KIT); 76128 Karlsruhe Germany
3. Physikalisches Institut (PHI); Karlsruhe Institute of Technology (KIT); 76128 Karlsruhe Germany
4. Institute of Applied Materials (IAM) and Karlsruhe Nano Micro Facilty (KNMF); Karlsruhe Institute of Technology (KIT); 76344 Eggenstein-Leopoldshafen Germany
5. Institute of Nanotechnology (INT); Karlsruhe Institute of Technology (KIT); 76344 Eggenstein-Leopoldshafen Germany
6. Helmholtz-Institute Ulm for Electrochemical Energy Storage (HIU); Karlsruhe Institute of Technology (KIT); 89081 Ulm Germany