Collective Optical, FTIR, and Photoluminescence Spectra of CeO₂ and/or Sm₂O₃-Doped Na₂O–ZnO–P₂O₅ Glasses

Figure 9

FT-infrared absorption spectra of (a) 0.5%, (b) 2%, and (c) 5% CeO₂-doped glasses.