Time resolved spectra and energy transfer analysis of Nd3+-Yb3+-Er3+ triply-doped Ba-Al-metaphosphate glasses for an eye safe emission (1.54 μm)
IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata
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| Title |
Time resolved spectra and energy transfer analysis of
Nd3+-Yb3+-Er3+ triply-doped Ba-Al-metaphosphate glasses for an eye safe emission (1.54 μm)
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| Creator |
Sontakke, Atul D
Biswas, Kaushik Mandal, Ashis Kumar Annapurna, K |
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| Subject |
Glass
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| Description |
This paper reports on the development and systematic analysis of energy transfer mechanisms in Nd3+-Yb3+-Er3+ co-doped new series of barium-alumino-metaphosphate
glasses. The time resolved fluorescence spectra of Nd3+ in triply doped Ba-Almetaphosaphte glasses have revealed that, Yb3+ ions could function as quite efficient bridge for an energy transfer between Nd3+ and Er3+ ions. As a result, a fourfold emission enhancement at 1.54 μm of Er3+ ions has been achieved through an excitation of 4F5/2 level of Nd3+ at 806 nm for the glass having 3 mol% Yb3+ with an energy transfer efficiency reaching up to 94%. Decay of donor (Nd3+) ion fluorescence has been analyzed based on theoretical models such as Inokuti-Hirayama, Burshtein (migration) and Yokota-Tanimoto (diffusion) and corresponding energy transfer parameters have been
discussed. Primarily, electrostatic dipole-dipole (s ~ 6) interactions are found to be responsible for the occurrence of energy transfer process in theses glasses.
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| Publisher |
Springer/Plenum Publishers
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| Date |
2010
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cgcri.csircentral.net/6/1/KB_Journal_of_fluorescence2[1].pdf
Sontakke, Atul D and Biswas, Kaushik and Mandal, Ashis Kumar and Annapurna, K (2010) Time resolved spectra and energy transfer analysis of Nd3+-Yb3+-Er3+ triply-doped Ba-Al-metaphosphate glasses for an eye safe emission (1.54 μm). Journal of Fluorescence, 20 (1). pp. 425-434. ISSN 1053-0509 |
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| Relation |
http://cgcri.csircentral.net/6/
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