1 Chair in Hybrid Nanosystems, Nanoinstitute Munich, Faculty of Physics, Ludwig Maximilian University of Munich, 80539, Munich, Germany.
2 Leibniz Institute of Photonic Technology, 07745, Jena, Germany.
3 I.U. Física Aplicada a las Ciencias y las Tecnologías, Universidad de Alicante, P.O. Box 99, 03080, Alicante, Spain.
4 Dpto. de Física, Ing. de Sistemas y Teoría de la Señal, Universidad de Alicante, P.O. Box 99, 03080, Alicante, Spain.
5 Departamento de Física, Universidade Federal de Pernambuco, 50670-901, Recife-PE, Brazil.
6 Chair in Hybrid Nanosystems, Nanoinstitute Munich, Faculty of Physics, Ludwig Maximilian University of Munich, 80539, Munich, Germany. stefan.maier@monash.edu.
7 School of Physics and Astronomy, Faculty of Science, Monash University, Melbourne, VIC, 3800, Australia. stefan.maier@monash.edu.
8 Department of Physics, Imperial College London, London, SW7 2AZ, UK. stefan.maier@monash.edu.
9 Leibniz Institute of Photonic Technology, 07745, Jena, Germany. markus.schmidt@leibniz-ipht.de.
10 Abbe Center of Photonics and Faculty of Physics, FSU Jena, 07745, Jena, Germany. markus.schmidt@leibniz-ipht.de.
11 Otto Schott Institute of Material Research, FSU Jena, 07745, Jena, Germany. markus.schmidt@leibniz-ipht.de.
12 School of Physics and Astronomy, Faculty of Science, Monash University, Melbourne, VIC, 3800, Australia. haoran.ren@monash.edu.