1. Centre for Photonics and Photonic Materials (CPPM) and Department of Physics
2. University of Bath
3. Claverton Down
4. Bath BA2 7AY
5. UK
6. Physics and Astronomy
7. University of Southampton
8. University Road
9. Southampton SO17 1BJ
10. Institut Néel CNRS and Université Grenoble Alpes
11. F-38042 Grenoble
12. France
13. Department of Physics and Astronomy
14. Vrije Universiteit, de Boelelaan 1081
15. 1081 HV Amsterdam
16. The Netherlands
17. Material and Chemical Characterization Facility (MC2)
18. University of Bath, Claverton Down
19. Department of Mechanical Engineering