1. Alexandru Ioan Cuza University of Iasi, Faculty of Physics Bulevardul Carol I, nr.11, 700506, Iasi, Romania
2. Alexandru Ioan Cuza University of Iasi, Institute of Interdisciplinary Research, Research Center on Advanced Materials and Technologies, Science Department, Bulevardul Carol I, nr. 11, 700506 Iasi, Romania
3. Angers University, Faculty of Sciences, Photonics Laboratory, (LPhiA) E.A. 4464, SFR Matrix, 2 Bd Lavoisier, 49000 Angers, France