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The cross-relaxation dynamics of Tm 3+ -doped strontium fluorapatites (S-FAP) has been examined using time-resolved fluorescence spectroscopy. The temperature dependence of the fluorescence lifetime crystal suggests a dipole-dipole interaction between the Tm 3+ ions and the energy is transported by an incoherent hopping mechanism. The temperature dependence of the fluorescence...
The spectroscopic analysis of the absorption properties of the Tm 3+ ion in the three fluorapatite crystals has been performed. Using the room temperature absorption data, the spontaneous emission rates, cross-sections and cross-relaxation rates have been determined using Judd-Ofelt theory. Based on emission lifetimes and emission cross-sections for the 3 F 4 -> ...
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