Author Affiliations

Vincenzo Bruno,^*,1 Stefano Vezzoli,¹ Clayton DeVault,² Thomas Roger,¹ Vladimir M. Shalaev,³ Alexandra Boltasseva,³ Marcello Ferrera,¹ Matteo Clerici,⁴ Audrius Dubietis,⁵ and Daniele Faccio^1,6

¹Institute of Photonics and Quantum Sciences, Heriot-Watt University, EH14 4AS Edinburgh, UK.

²Department of Physics and Astronomy and Birck Nanotechnology Center, Purdue University, 1205 West State Street, West Lafayette, Indiana, 47907-2057, USA

³School of Electrical and Computer Engineering and Birck Nanotechnology Center, Purdue University, 1205 West State Street, West Lafayette, Indiana 47907-2057, USA

⁴School of Engineering, University of Glasgow, G12 8LT Glasgow, United Kingdom

⁵Department of Quantum Electronics, Vilnius University, Saulėtekio Avenue 9, Building 3, LT-10222 Vilnius, Lithuania

⁶School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom

^*Corresponding author: vb15@hw.ac.uk