1. Jerusalem College of Technology, Lev Academic Center, Faculty of Engineering, Department of Applied Physics/Electro-Optics Engineering, Advanced Laboratory of Electro-Optics, Jerusalem, Israel
2. Bar-Ilan University, The Nanotechnology Center, Ramat Gan, Israel
3. Politehnica University of Bucharest, Center for Microscopy-Microanalysis and Information Processing, Bucharest, Romania
4. Bar-Ilan University, Faculty of Engineering, Ramat Gan, Israel