Publicação:
Blue upconversion enhancement by a factor of 200 in Tm 3+-doped tellurite glass by codoping with Nd 3+ ions

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2-s2.0-0037113050.pdf (198.68 KB)

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2002-11-15

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Resumo

We investigated near-infrared-to-blue upconversion from thulium (Tm 3+) doped in tellurite glasses upon continuous wave excitation near 800 nm. We observed an enhancement of over two orders of magnitude of the upconverted emission at ∼480nm when neodymium (Nd 3+) ions were codoped with Tm 3+ ions. For comparison, using a Tm 3+:Nd 3+ codoped fluorozirconate glass as a reference material we observed a 40-fold enhancement of the blue emission. Analysis of the blue emission for samples with different doping levels of Nd 3+ ions showed that energy transfer between Nd 3+ and Tm 3+ is the mechanism responsible for the enhancement in upconversion. © 2002 American Institute of Physics. © 2002 American Institute of Physics.

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Blue emission, Blue upconversion, Co-doped, Co-doping, Continuous Wave, Doping levels, Fluorozirconate glass, Orders of magnitude, Reference material, Tellurite glass, Up-conversion, Doping (additives), Energy transfer, Glass, Ions, Tellurium compounds, Thulium, Neodymium

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Inglês

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Journal of Applied Physics, v. 92, n. 10, p. 6337-6339, 2002.

URI

http://hdl.handle.net/11449/67020

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Araraquara - IQAR - Instituto de Química

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