FIR and Raman Spectroscopy Study of CdS-Doped SiO2 Films M. I. Vasilevskiy, A. G. Rolo, M.J.M. Gomes, and A.S.Savinov “3rd Russian Conference on Physics of Semiconductors - RCFP3”, Moscow, 1-5 Dezembro de 1997, Rússia.