1. Leibniz Institute of Photonic Technology (IPHT)
2. D-07745 Jena
3. Germany
4. Institute of Physical Chemistry and Abbe Center of Photonics
5. University of Jena
6. Centro de Física de Materiales
7. Centro Mixto CSIC-UPV/EHU and Donostia International Physics Center (DIPC)
8. ES-20018 Donostia-San Sebastián
9. Spain
10. Hefei National Laboratory for Physical Science at the Microscale and Synergetic Innovation Center of Quantum Information & Quantum Physics
11. University of Science and Technology of China
12. Hefei
13. P. R. China