Sontakke, Atul D and Biswas, Kaushik and Sen, Ranjan and Annapurna, K (2010) Efficient non-resonant energy transfer in Nd(3+)-Yb(3+) codoped Ba-Al-metaphosphate glasses. Journal of the Optical Society of America B-Opticcal Physics, 27 (12). pp. 2750-2758. ISSN 0740-3224

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An efficient Nd(3+) -> Yb(3+) energy transfer in a new series of alkali-free barium-alumino-metaphosphate glasses with a transfer efficiency reaching up to 95% has been reported here. It is due to the effective phonon assistance arising with the excellent matching of the present host phonon energy with the energy mismatch between Nd(3+) ((4)F(3/2)) and Yb(3+) ((2)F(5/2)) excited levels. The energy transfer microparameters for Nd(3+) -> Yb(3+) forward and back energy transfers are estimated from the spectral data analysis. A parameter, (Phi)ET (=C(DA)(Nd-Yb)/C(DA)(Nd-Nd)), is proposed as a quantitative measure of sensitization ability per unit loss of the donor. The parameter is found to be highest for the presently reported barium-alumino-metaphosphate glasses. (C) 2010 Optical Society of America

Item Type: Article
Subjects: Glass
Depositing User: Bidhan Chaudhuri
Date Deposited: 16 Feb 2012 10:24
Last Modified: 16 Feb 2012 10:24

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