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Influence of other rare earth ions on the optical refrigeration efficiency in Yb:YLF crystals

Influence of other rare earth ions on the optical refrigeration efficiency in Yb:YLF crystals

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DI LIETO, Alberto, Alberto SOTTILE, Azzurra VOLPI, Zhonghan ZHANG, Denis V. SELETSKIY, Mauro TONELLI, 2014. Influence of other rare earth ions on the optical refrigeration efficiency in Yb:YLF crystals. In: Optics Express. 22(23), pp. 28572-28583. eISSN 1094-4087. Available under: doi: 10.1364/OE.22.028572

@article{DiLieto2014Influ-29693, title={Influence of other rare earth ions on the optical refrigeration efficiency in Yb:YLF crystals}, year={2014}, doi={10.1364/OE.22.028572}, number={23}, volume={22}, journal={Optics Express}, pages={28572--28583}, author={Di Lieto, Alberto and Sottile, Alberto and Volpi, Azzurra and Zhang, Zhonghan and Seletskiy, Denis V. and Tonelli, Mauro} }

2015-02-02T08:22:01Z Volpi, Azzurra Zhang, Zhonghan Sottile, Alberto 2014 Di Lieto, Alberto Tonelli, Mauro Sottile, Alberto Volpi, Azzurra Seletskiy, Denis V. Seletskiy, Denis V. eng Influence of other rare earth ions on the optical refrigeration efficiency in Yb:YLF crystals Tonelli, Mauro Zhang, Zhonghan Di Lieto, Alberto We investigated the effect of rare earth impurities on the cooling efficiency of Yb<sup>3+</sup>:LiYF<sub>4</sub> (Yb:YLF). The refrigeration performance of two single crystals, doped with 5%-at. Yb and with identical history but with different amount of contaminations, have been compared by measuring the cooling efficiency curves. Spectroscopic and elemental analyses of the samples have been carried out to identify the contaminants, to quantify their concentrations and to understand their effect on the cooling efficiencies. A model of energy transfer processes between Yb and other rare earth ions is suggested, identifying Erbium and Holmium as elements that produce a detrimental effect on the cooling performance. 2015-02-02T08:22:01Z

Dateiabrufe seit 02.02.2015 (Informationen über die Zugriffsstatistik)

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