Enhancement of upconversion intensity in Er3+ doped tellurite glass in presence of Yb3+

Applied Physics B (Impact Factor: 1.86). 07/2011; 104(1):233-236. DOI: 10.1007/s00340-011-4422-6


TeO2-PbO glasses doped/codoped with Er3+/Er 3+-Yb3+ ions have been fabricated by melting and quenching method. Efficient frequency upconversion emissions spanning from blue to red regions corresponding to the 2H11/2, 4S 3/2→4I15/2 and 4F 9/2→4I15/2 transitions, respectively, upon excitation with 976 nm diode laser radiation have been observed. The variations observed in the intensity of whole upconversion emission spectra due to the presence of the Yb3+ ions are reported and discussed in detail.

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    • "9/2 → 4 I 15/2 , 2 H 11/2 → 4 I 15/2 , 4 S 3/2 → 4 I 15/2 , 4 F 9/2 → 4 I 15/2 and 4 I 9/2 → 4 I 15/2 transitions from the Er 3+ ion whereas the emission band around 489 nm is due to the 2 F 5/2 → 2 F 7/2 transition of the Yb 3+ ion, respectively [27] [28] [29] "
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