1. Unit of Electro-Optics Engineering, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
2. Ilse Katz Center for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
3. Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
4. Joan and Irwin Jacobs TIX Institute, National Tsing Hua University, Hsinchu City, Taiwan.