1. Optical Materials Engineering Laboratory; Department of Mechanical and Process Engineering; ETH Zurich; 8092 Zurich Switzerland
2. Department of Chemistry; University of Oxford; South Parks Road Oxford OX1 3QZ UK
3. Department of Biology and Chemistry; Laboratory of Biomolecular Research; Paul Scherrer Institut; 5232 Villigen PSI Switzerland
4. Laboratory for Nanoscale Materials Science; Empa; Überlandstrasse 129 8600 Dübendorf Switzerland
5. Zuse Institute Berlin; 14195 Berlin Germany
6. JCMwave GmbH; 14050 Berlin Germany