1. Department of Molecular Compound Physics, Center for Physical Sciences and Technology, Saulėtekio Avenue 3, LT-10257 Vilnius, Lithuania
2. Institute of Chemical Physics, Faculty of Physics, Vilnius University, Saulėtekio Avenue 9, LT-10222 Vilnius, Lithuania
3. Laboratory of Photomolecular Science, ISIC, Swiss Federal Institute of Technology (EPFL), CH-1015 Lausanne, Switzerland