Blue upconversion luminescence in Tm^(3+)/Yb^(3+) co-doped new oxyfluoride tellurite glass
Chinese Optics Letters, Vol. 3, Issue 9, pp. 536-538 (2005)
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Abstract
The thermal stability, Raman spectrum and upconversion properties of Tm^(3+)/Yb^(3+) co-doped new oxyfluoride tellurite glass are investigated. The results show that Tm^(3+)/Yb^(3+) co-doped oxyfluoride tellurite glass possesses good thermal stability, lower phonon energy, and intense upconversion blue luminescence. Under 980-nm laser diode (LD) excitation, the intense blue (475 nm) emission and weak red (649 nm) emission corresponding to the 1G4 -> 3H6 and 1G4 -> 3F4 transitions of Tm^(3+) ions respectively, were simultaneously observed at room temperature. The possible upconversion mechanisms are evaluated. The intense blue upconversion luminescence of Tm^(3+)/Yb^(3+) co-doped oxyfluoride tellurite glass can be used as potential host material for the development of blue upconversion optical devices.
© 2005 Chinese Optics Letters
OCIS Codes
(160.2540) Materials : Fluorescent and luminescent materials
(160.2750) Materials : Glass and other amorphous materials
(160.4670) Materials : Optical materials
(160.4760) Materials : Optical properties
Citation
Shiqing Xu, Hongping Ma, Dawei Fang, Zaixuan Zhang, Lili Hu, and Zhonghong Jiang, "Blue upconversion luminescence in Tm^(3+)/Yb^(3+) co-doped new oxyfluoride tellurite glass," Chin. Opt. Lett. 3, 536-538 (2005)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-3-9-536
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