Research Article

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

Figure 11

FT-infrared absorption spectra of (a) 0.25% CeO2 + 0.25% Sm2O3, (b) 1% CeO2 + 1% Sm2O3, and (c) 2.5% CeO2 + 2.5% Sm2O3-doped glasses.