1. European Laboratory for Non-Linear Spectroscopy (LENS), Sesto Fiorentino 50019, Italy
2. Department of Physics, University of Florence, Sesto Fiorentino 50019, Italy
3. National Institute of Optics (INO), National Research Council (CNR), Sesto Fiorentino 50019, Italy
4. Department of Chemistry, University of Florence, Sesto Fiorentino 50019, Italy
5. Department of Neurological and Psychiatric Sciences (NeuroFarba), University of Florence, Firenze 50134, Italy
6. IRCCS Fondazione Don Carlo Gnocchi, Firenze 50143, Italy