Author Affiliations

L. G. Helt,^1,* M. Liscidini,² A. Farsi,³ S. Clemmen,³ V. Venkataraman,³ J. Levy,⁴ M. Lipson,⁴ A. Gaeta,³ and J. E. Sipe¹

¹Department of Physics, University of Toronto, 60 St. George St., Toronto, Ontario, Canada M5S 1A7

²Department of Physics “A. Volta” and CNSIM UdR Pavia, University of Pavia, Via Bassi 6, I-27100 Pavia, Italy

³School of Electrical and Computer Engineering, Cornell University, Ithaca, New York 14853, USA

⁴School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, USA

^*Corresponding author: lhelt@physics.utoronto.ca