Sensitized thulium ultraviolet upconversion luminescence in Tm3+/Yb3+/Nd3+ triply doped nanoglass ceramics
Optics Letters, Vol. 32, Issue 21, pp. 3068-3070 (2007)
http://dx.doi.org/10.1364/OL.32.003068
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Abstract
Intense four- and five-photon ultraviolet upconversion processes through sensitization of Tm3+ ions in transparent SiO2-Al2O3-NaF-YF3 glass ceramics triply doped with Tm3+/Yb3+/Nd3+ under 796nm excitation were investigated. Judd-Ofelt analyses evidenced the incorporation of rare-earth ions into the precipitated β-YF3 nanocrystals. In contrast with the triply doped one, no ultraviolet upconversion luminescence was observed in the Tm3+/Nd3+ codoped glass ceramic, indicating that Yb3+ acts as bridging ions to enhance the energy transfer efficiency between Nd3+ and Tm3+. Based on the pumping power dependence of luminescence, upconversion mechanisms were proposed.
© 2007 Optical Society of America
OCIS Codes
(160.4670) Materials : Optical materials
(160.5690) Materials : Rare-earth-doped materials
(190.7220) Nonlinear optics : Upconversion
(300.6540) Spectroscopy : Spectroscopy, ultraviolet
ToC Category:
Spectroscopy
History
Original Manuscript: July 27, 2007
Revised Manuscript: August 30, 2007
Manuscript Accepted: September 18, 2007
Published: October 15, 2007
Citation
Daqin Chen, Yuansheng Wang, Yunlong Yu, Feng Liu, and Ping Huang, "Sensitized thulium ultraviolet upconversion luminescence in Tm3+/Yb3+/Nd3+ triply doped nanoglass ceramics," Opt. Lett. 32, 3068-3070 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-21-3068
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