1. Department of Engineering Physics, École Polytechnique de Montréal, Montréal, C.P. 6079, Succ. Centre-Ville, Montréal, Québec H3C 3A7, Canada
2. Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, 117583 Singapore
3. Tyndall National Institute, University College Cork, Lee Maltings, Dyke Parade, Cork T12 R5CP, Ireland
4. Institute of Integrated Photonics, RWTH Aachen University, Campus-Boulevard 73, 52074 Aachen, Germany
5. Department of Electrical Engineering and Physics, Wilkes University, Wilkes-Barre, Pennsylvania 18701, USA
6. Department of Electrical Engineering, University of Arkansas, Fayetteville, Arkansas 72701, USA
7. University Grenoble Alpes, CEA, Leti, 38054 Grenoble, France
8. Peter Gruenberg Institute 9 (PGI-9), Forschungszentrum Jülich, 52425 Jülich, Germany
9. School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore