1. School of Electrical Engineering and Computer Science, University of Ottawa, Ottawa, Ontairo K1N 6N5, Canada
2. Department of Physics, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
3. Stewart Blusson Quantum Matter Institute, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada
4. Laboratory of Photonics, Tampere University, FI-33014 Tampere, Finland
5. National Technical University of Ukraine, “Igor Sikorsky Kyiv Polytechnic Institute”, 03056 Kyiv, Ukraine
6. Hannover Centre for Optical Technologies, Cluster of Excellence PhoenixD (Photonics, Optics, and Engineering − Innovation Across Disciplines), and Fakultät für Maschinenbau (Institut für Transport- und Automatisierungstechnik), Leibniz Universität Hannover, 30167, Hannover, Germany
7. Section of Condensed Matter Physics, Department of Physics, National and Kapodistrian University of Athens, Panepistimioupolis GR-157 84 Athens, Greece