Abstract

Lead phosphate glasses containing ${\mathrm{Eu}}^{3+}$ and ${\mathrm{Dy}}^{3+}$ have been studied. Local structure was verified using Fourier transform (FT)-IR spectroscopy. Emission bands of ${\mathrm{Eu}}^{3+}$ and ${\mathrm{Dy}}^{3+}$ ions in lead phosphate glasses are observed in the visible spectral range, which correspond to ${}^5{\mathrm{D}}_0\to {}^7{\mathrm{F}}_{\mathrm{J}}$ ($J=0,1,2,4$) and ${}^4{\mathrm{F}}_{9/2}\to {}^6{\mathrm{H}}_{\mathrm{J}/2}$ ($J=15,13,11$) transitions, respectively. Shorter luminescence decays from excited states of ${\mathrm{Eu}}^{3+}$ and ${\mathrm{Dy}}^{3+}$ are due to the presence of PbO in phosphate glass.

© 2011 Optical Society of America

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