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New fluoroaluminate–tellurite glasses with high thermal stability were fabricated through introducing TeO 2 into the fluoroaluminate glass (AlF 3 –YF 3 –CaF 2 –BaF 2 –SrF 2 –MgF 2 ). 2.7μm emission properties were investigated through the measured absorption and emission spectra. For the first time it was found that the OH − absorption...
The fluorescence properties of 2.7μm emission and energy transfer mechanism of Ho 3+ /Er 3+ co-doped fluoride glass (ZBYA) have been investigated in the present paper. Ho 3+ strengthens the Er 3+ : 2.7μm emission in the ZBYA glasses due to the energy transfer from Er 3+ to Ho 3+ , while the 1.5μm emission decreases dramatically. The optimized concentration...
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