1. School of Electrical and Electronic Engineering; Nanyang Technological University; 50 Nanyang Avenue Singapore 639798
2. Bio-Optical Imaging Group; Singapore Bioimaging Consortium (SBIC), Agency for Science Technology and Research (A*STAR); 11 Biopolis Way Singapore 138667
3. CINTRA CNRS/NTU/THALES; Research Techno Plaza; 50 Nanyang Drive Singapore 637553
4. Xlim research institute; UMR 7252, CNRS/University of Limoges; 123 Avenue Albert Thomas 87060 France
5. School of Physics; National University of Ireland; Galway Ireland