Sontakke, Atul D and Biswas, Kaushik and Sen, Ranjan and Annapurna, K (2010) Efficient non-resonant energy transfer in Nd3+ - Yb3+ codoped Ba-Al-metaphosphate glasses. Journal of the Optical Society of America B-Opticcal Physics, 27 (12). pp. 2750-2758. ISSN 0740-3224 (Submitted)

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Abstract

An efficient Nd3+ ® Yb3+ energy transfer in a new series of alkali-free bariumalumino-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 Nd3+ (4F3/2) and Yb3+ (2F5/2) excited levels. The energy transfer microparameters for Nd3+ ® Yb3+ forward and back energy transfer are estimated from the spectral data analysis. A parameter, ET (= Nd Yb DA C − / Nd Nd DA C − ) 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.

Item Type:	Article
Subjects:	Glass
Divisions:	Glass
Depositing User:	Mrs Chandana Patra
Date Deposited:	15 Nov 2011 11:06
Last Modified:	08 Jan 2013 13:37
URI:	http://cgcri.csircentral.net/id/eprint/3

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