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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Vol. 22, Iss. 6 — Jun. 1, 2005
  • pp: 1255–1259

Energy transfer in Pb O Bi 2 O 3 Ga 2 O 3 glasses codoped with Yb 3 + and Er 3 +

Luciana R.P. Kassab, Marcos E. Fukumoto, and Laércio Gomes  »View Author Affiliations

JOSA B, Vol. 22, Issue 6, pp. 1255-1259 (2005)

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The mechanism of the Yb 3 + Er 3 + ( Pb O Bi 2 O 3 Ga 2 O 3 ) glasses by use of several combinations of Yb 3 + and Er 3 + concentrations. The measured luminescence decay curves of the donors are used to determine the experimental transfer rates; the best fittings for them are obtained with single exponentials. The microparameters are calculated and used to determine the theoretical rates. The real migration mechanism, involved in the energy transfer of each sample, diffusion, or hopping, is determined by means of the experimental transfer rates and the theoretical ones; fast excitation diffusion among donors, followed by a direct donor to acceptor energy transfer, predominates. A comparison is made with the energy-transfer mechanism of ZBLAN glass codoped with Yb 3 + and Er 3 + , as fast-excitation diffusion among donors, followed by direct energy transfer, was also observed.

© 2005 Optical Society of America

OCIS Codes
(160.5690) Materials : Rare-earth-doped materials
(300.2140) Spectroscopy : Emission

Luciana R. P. Kassab, Marcos E. Fukumoto, and Laércio Gomes, "Energy transfer in PbO-Bi2O3-Ga2O3 glasses codoped with Yb3+ and Er3+," J. Opt. Soc. Am. B 22, 1255-1259 (2005)

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