1. CNRS-International NTU Thales Research Alliance (CINTRA) UMI 3288, Research Techno Plaza, 50 Nanyang Drive, Singapore 637553, Singapore
2. Institute of Microelectronics, Agency for Science, Technology and Research (A*Star), 11 Science Park Road, Singapore 117685, Singapore
3. Temasek Laboratories@NTU, 50
Nanyang Avenue, Singapore 639798, Singapore