1. Centre for Disruptive Photonic Technologies; TPI; SPMS; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
2. Interdisciplinary Graduate School; Nanyang Technological University; Singapore 639798 Singapore
3. Energy Research Institute @ NTU (ERI@N); Research Techno Plaza; Nanyang Technological University; 50 Nanyang Drive Singapore 637553 Singapore
4. CINTRA UMI CNRS/NTU/THALES 3288; Nanyang Technological University; Research Techno Plaza; 50 Nanyang Drive, Border X Block, Level 6 Singapore 637553 Singapore
5. Optoelectronics Research Centre and Centre for Photonic Metamaterials; University of Southampton; SO17 1BJ Southampton UK