1. Laboratoire
MOLTECH-Anjou UMR 6200, UFR Sciences, CNRS, Université d’Angers, Bât. K, 2 Bd. Lavoisier, 49045 Angers, France
2. Faculty
of Chemistry, Inorganic Chemistry Laboratory Str., University of Bucharest, Dumbrava Rosie nr. 23, 020464-Bucharest, Romania
3. Laboratory
of Solid-State Quantum Electronics, National Institute for Laser, Plasma, and Radiation Physics, P.O. Box MG-36, Magurele 077125, Romania
4. CNRS,
CRPP, UPR 8641, F-33600 Pessac, France
5. University of Bordeaux, CRPP, UPR 8641, F-33600 Pessac, France