1. ICFO - The Institute of Photonic Sciences, Mediterranean Technology
Park, Avenida Carl Friedrich Gauss
3, 08860 Castelldefels
(Barcelona), Spain
2. Engineering Product
Development, Singapore University of Technology and Design, 8 Somapah
Road, Singapore 487372, Singapore
3. ICREA - Institució Catalana de Recerca i Estudis Avançats, Passeig Lluís Companys 23, 08010 Barcelona, Spain
4. Photonics Laboratory, ETH Zürich, Hönggerbergring 64, 8093 Zürich, Switzerland