Author Affiliations

Gerhard Schunk,^1,2,3 Golnoush Shafiee,^1,2 Ulrich Vogl,^1,2 Dmitry Strekalov,^1,2 Alexander Otterpohl,^1,2,3 Florian Sedlmeir,⁴ Harald G. L. Schwefel,⁴ Gerd Leuchs,^1,2 and Christoph Marquardt^1,2

¹Max Planck Institute for the Science of Light, Günther-Scharowsky-Str. 1, Bau 24, 91058, Erlangen, Germany

²Institut für Optik, Information und Photonik, University of Erlangen-Nuremberg, Staudtstraße 7/B2, 91058, Erlangen, Germany

³SAOT, School in Advanced Optical Technologies, Paul-Gordan-Straße 6, 91052 Erlangen, Germany

⁴Department of Physics, University of Otago, 730 Cumberland Street, Dunedin 9016, New Zealand