1. Institute of Photonics and Nanotechnology
2. Faculty of Physics
3. Vilnius University
4. LT-10222 Vilnius
5. Lithuania
6. Institute of Technology of Organic Chemistry
7. Faculty of Materials Science and Applied Chemistry
8. Riga Technical University
9. LV-1048 Riga
10. Latvia
11. Laboratoire Ondes et Matière d’Aquitaine
12. Bordeaux University
13. UMR CNRS 5798
14. 33405 Talence
15. France