Efficient non-resonant energy transfer in Nd3+ - Yb3+ codoped Ba-Al-metaphosphate glasses
IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata
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| Title |
Efficient non-resonant energy transfer in Nd3+ - Yb3+ codoped Ba-Al-metaphosphate glasses
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| Creator |
Sontakke, Atul D
Biswas, Kaushik Sen, Ranjan Annapurna, K |
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| Subject |
Glass
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| Description |
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.
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| Publisher |
Optical Society of America
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| Date |
2010-12
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| Type |
Article
NonPeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cgcri.csircentral.net/3/1/KB_J_Opt_Soc_Am_B[1].pdf
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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| Relation |
http://cgcri.csircentral.net/3/
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