Energy transfer from Yb to X (X = Tm, Er) in lead borate glasses

• Autorzy: Pisarska J. , Ryba-Romanowski W. , Dominiak-Dzik G. , Goryczka T. , Pisarski W.A.
• Konferencja: 7th Seminar Porous Glasses - Special Glasses PGL, 2005, Szklarska Poręba, Poland, September 10-14, 2005 r.
• Języki publikacji: EN

Abstrakty

EN

Energy transfer processes in lead borate glasses doubly doped with Yb-Tm and Yb-Er have been investigated at room temperature under excitation of Yb at 975 nm. The non-resonant energy transfer from 2F5/2 state of Yb to 3H5 state of Tm results in up-converted emission at 850 nm due to the 3H4-3H6 transition of thulium ions. The nearly resonant transfer from 2F5/2 state of Yb to 4I11/2 state of Er results in green up-conversion and near-infrared emission, which correspond to the 4S3/2-4I15/2 and 4I13/2-4I15/2 transitions of erbium ions, respectively. High Yb concentration in both co-doped samples is required for optimal energy transfer efficiency (h > 90%). Results with the singly Yb-doped samples are also presented to clarify the energy transfer process.

Słowa kluczowe

EN

lead borate glasses; rare earth ions; energy transfer process; up-conversion emission

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2005
• Tom: Vol. 35, nr 4
• Strony: 837--842
• Opis fizyczny: Bibliogr. 9 poz.

Twórcy

autor

Pisarska J.

• Silesian University of Technology, Department of Materials Science, Krasińskiego 8, 40-019 Katowice

autor

Ryba-Romanowski W.

• Institute of Low Temperature and Structure Research, PAS, PO Box 1410, 50-950 Wrocław 2, Poland

autor

Dominiak-Dzik G.

• Institute of Low Temperature and Structure Research, PAS, PO Box 1410, 50-950 Wrocław 2, Poland

autor

Goryczka T.

• University of Silesia, Institute of Materials Science, Bankowa 12, 40-007 Katowice, Poland

autor

Pisarski W.A.

• University of Silesia, Institute of Materials Science, Bankowa 12, 40-007 Katowice, Poland

Bibliografia

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