Study of Raman amplification in nanostructured materials

In this paper, nanostructured materials based both on silica and silicon, are studied in order to obtain new materials with both large Raman gain coefficients and spectral bandwidth. In particular, silica-niobia based glasses have been characterized by linear Raman spectroscopy, while amorphous silicon nanoparticles and in silicon micro- and nano-crystals have been characterized by Stimulated Raman Scattering spectroscopy. Finally, results are discussed.