Author Affiliations

Govert Neijts,^1,2,4 Choon Kong Lai,^1,2 Maren Kramer Riseng,^1,2 Duk-Yong Choi,³ Kunlun Yan,³ David Marpaung,⁴ Stephen J. Madden,³ Benjamin J. Eggleton,^1,2 and Moritz Merklein^1,2

¹Institute of Photonics and Optical Science (IPOS), School of Physics, The University of Sydney, NSW 2006, Australia

²The University of Sydney Nano Institute (Sydney Nano), The University of Sydney, Camperdown, NSW 2006, Australia

³Laser Physics Centre, School of Physics, Australian National University, Canberra, ACT 2601, Australia

⁴Nonlinear Nanophotonics, MESA+ Institute of Nanotechnology, University of Twente, Enschede, the Netherlands