Author Affiliations

Darren Freeman,^1,* Steve Madden,¹ Barry Luther-Davies,¹ Christian Grillet,² Ara A. Asatryan,³ Kokou Dossou,³ Michael A. Byrne,³ and Lindsay C. Botten³

¹CUDOS, Laser Physics Centre, The Australian National University, Canberra, Australian Capital Territory 0200, Australia

²CUDOS, School of Physics, The University of Sydney, Sydney, New South Wales 2006, Australia

³CUDOS, Department of Mathematical Sciences, The University of Technology Sydney, Sydney, New South Wales 2007, Australia

^*Corresponding author: dfreeman@ieee.org