1. Max Planck Institute for the Science of Light, D-91058 Erlangen, Germany
2. Department of Physics, Friedrich Alexander University Erlangen-Nuremberg, D-91058 Erlangen, Germany
3. Faculty of Physics, Ludwig-Maximilians−Universität München, D-85748 Garching, Germany
4. California Institute of Technology, Pasadena, California 91125, United States
5. Department of Chemistry, Johannes Gutenberg-University, 55099 Mainz, Germany
6. Laboratory of Thermodynamics in Emerging Technologies, Department of Mechanical and Process Engineering, ETH Zurich, CH-8092 Zurich, Switzerland
7. Graduate School in Advanced Optical Technologies (SAOT), Friedrich Alexander University Erlangen-Nuremberg, D-91052 Erlangen, Germany