Analysis of fluorescence spectra of oxyfluoride compositions doped with samarium oxide (Sm2O3) and samarium fluoride (SmF3)

ZnO-ZnF2-P2O5-B2O3 compositions, doped with a varying quantity of samarium oxide (Sm2O3) and samarium fluoride (SmF3) have been synthesized. The thermal properties of the obtained compositions have been measured using DSC analysis. Fluorescence spectra measured at different excitation wavelengths are shown. The fluorescence excitation efficiency for varying quantity of Samarium in the samples and the pumping wavelength has been studied. With optical pumping in the 370-490 nm range fluorescence spectra indicating the presence of Sm3+ have been obtained. The widening of the pumping range to higher wavelengths a new fluorescence peak was observed. The range in which the peak is observed was established from the performed analysis and the excitation wavelength of maximum efficiency was determined.