Abstract
Glasses with compositions (molar ratio, ) for optical applications were prepared using the sol-gel route. The introduction of hafnium into the glass matrix induced the energy splitting of the state of ions. Furthermore, fluorescence line narrowing (FLN) spectra indicated that clustering occurred in glasses containing no hafnium. The addition of hafnium promoted better dispersion of ions in the glass matrix. The role of hafnium on modifying the properties of glasses was discussed with respect to x-ray diffraction and FLN analysis.
© 2009 Optical Society of America
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