Abstract
The effects of ions on the intensity and lifetime of fluorescence from ions in glass were investigated, and the energy-transfer mechanisms were discussed. codoping in -doped selenide glasses significantly enhanced the fluorescence intensity and remarkably increased corresponding lifetime through an efficient energy transfer from to . The donor excitation was transferred to the acceptor by direct electric dipole–dipole interaction or migrated among donor ions by diffusion-limited regime until it came into the vicinity of an acceptor ion, where direct interaction and transfer occurred.
© 2006 Optical Society of America
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