Abstract.
The energy transfer dynamics between Yb3+ and Er3+ ions in lithium niobate is investigated after ytterbium-pulsed excitation at 920 nm. The sensitisation of the LiNbO3:Er3+ system with Yb3+ ions does not modify the lifetime of the 4I13/2 erbium level (1.5-μm emission), whereas it induces a marked, concentration-dependent change in the lifetime of the 2F5/2 (Yb3+) and 4S3/2 (Er3+) multiplets (1060-nm and 550-nm emissions, respectively). The results are analysed by using the rate-equation formalism and cross-relaxation model for the energy transfer.
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Received: 15 October 1998 / Revised version: 24 November 1998 / Published online: 24 February 1999
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Cantelar, E., Cussó, F. Dynamics of the Yb3+ to Er3+ energy transfer in LiNbO3. Appl Phys B 69, 29–33 (1999). https://doi.org/10.1007/s003400050765
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DOI: https://doi.org/10.1007/s003400050765