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The optical properties of lanthanide ions, Sm 3+ and Dy 3+ doped in the PbO-PbF 2 oxyfluoride glass matrix are similar to those of fluoride glasses as shown by the Judd-Ofelt parameters and emission spectral properties. The stimulated emission cross-sections (σ p ) indicative of potential for lasers have been obtained. They are an order of magnitude less than...
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