1. School of Chemistry, University of Southampton, Southampton, UK.
2. Centre for Disruptive Photonic Technologies, SPMS, The Photonics Institute, Nanyang Technological University, Singapore 637371, Singapore.
3. Centre for Quantum Technologies, National University of Singapore, Singapore 117543, Singapore.
4. MajuLab, International Joint Research Unit IRL 3654, CNRS, Université Côte d’Azur, Sorbonne Université, National University of Singapore, Nanyang Technological University, Singapore, Singapore.
5. Optoelectronics Research Centre, University of Southampton, Southampton, UK.
6. Hagler Institute for Advanced Studies, Texas A&M University, College Station, TX 77843, USA.