Author Affiliations

J W Ferguson,¹ P Blood,^*,1 P M Smowton,¹ H Bae,² T Sarmiento,² J S Harris, Jr,² Nelson Tansu,³ and Luke J Mawst⁴

¹School of Physics and Astronomy, Cardiff University, Queens Buildings, Cardiff CF24 3AA, UK

²Solid State Photonics Laboratory, Stanford University, Stanford, California 94305, USA

³Centre for Optical technologies, Department of Electrical and Computer Engineering, Lehigh University, Bethlehem, Pennsylvania, 18015, USA.

⁴Reed Centre for Photonics, Department of Electrical and Computer Engineering, University of Wisconsin -Madison, Madison, Wisconsin 53706-1691, USA

^*Corresponding author: bloodp@cf.ac.uk