Infrared to visible upconversion of Er3+ and Er3+/Yb3+ codoped lead-niobium-germanate glasses

Rolindes Balda; Joaquin R. Fernandez; Jose M. Fernandez-Navarro

doi:10.1117/12.524924

19 November 2003 Infrared to visible upconversion of Er³⁺ and Er³⁺/Yb³⁺ codoped lead-niobium-germanate glasses

Rolindes Balda, Joaquin R. Fernandez, Jose M. Fernandez-Navarro

Proceedings Volume 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life; (2003) https://doi.org/10.1117/12.524924
Event: 19th Congress of the International Commission for Optics: Optics for the Quality of Life, 2002, Florence, Italy

Abstract

Infrared-to-visible upconversion processes have been investigated in Er³⁺-doped and Er³⁺/Yb³⁺ codoped lead-niobium-germanate glass (GeO₂-PbO-Nb₂O₅). Visible emissions at 526 nm, 547 nm, and 660 nm corresponding to the ²H_11/2→⁴I_15/2, ⁴S_3/2→⁴I_15/2, and ⁴F_9/2→⁴I_15/2 transitions respectively were observed under continuous wave excitation at 978 nm. Weak violet and blue emissions were also observed at 368 nm and 410 nm which are assigned to the ⁴G_9/2→⁴I_15/2 and ²H_9/2→⁴I_15/2 transitions respectively. An enhancement of the visible upconversion fluorescence in Er³⁺/Yb³⁺ codoped sample is confirmed due to efficient energy transfer from Yb³⁺ to Er³⁺ ions.

Citation Download Citation

Rolindes Balda, Joaquin R. Fernandez, and Jose M. Fernandez-Navarro "Infrared to visible upconversion of Er³⁺ and Er³⁺/Yb³⁺ codoped lead-niobium-germanate glasses", Proc. SPIE 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life, (19 November 2003); https://doi.org/10.1117/12.524924

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