- Institute of Electronic Structure and Laser (IESL), Foundation for Research and Technology (FORTH), Heraklion, Crete, Greece (D. Anglos, G. Filippidis)
- Istituto di Fisica Applicata "Nello Carrara", CNR, Florence, Italy (S. Siano)
- Istituto Nazionale di Ottica, CNR-INO, Florence, Italy (R. Fontana, L. Pezzati)