1. Optoelectronic
Materials Section, Department of Chemical Engineering, Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands
2. Department
of ECE, University of Toronto, 10 King’s College Road, Toronto, ON M4S
3G4, Canada
3. IMRA Europe, 220 rue Albert Caquot BP 213, 06904 Sophia Antipolis, France