Article ID Journal Published Year Pages File Type
9577849 Chemical Physics Letters 2005 5 Pages PDF
Abstract
The Pr3+: 1D2 → 1G4 transition in silica-based oxide glasses, which emits a strong luminescence centered at about 1530 nm with full-width at half-maximum wider than 200 nm, may reserve potential practicality owing to its fairly long fluorescence lifetime of ∼270 μs corresponding to theoretical quantum efficiency approaching unity and its emission wavelengths matching up to the optical communication window of silica transmission fiber. To minimize non-radiative energy transfers among the active ions, the host materials need doping concentration of Pr2O3 tantamount to not more than 0.01 mol%. Impact of ground state absorption to (3F3, 3F4) level on the emission is discussed and then efficient excitation schemes are proposed.
Related Topics
Physical Sciences and Engineering Chemistry Physical and Theoretical Chemistry
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