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10 February 2017 Upconversion luminescence in bismuth-germanate oxide glasses co-doped with lanthanide ions
Tomasz Ragin, Marcin Kochanowicz, Jacek Zmojda, Piotr Miluski, Piotr Jelen, Maciej Sitarz, Dominik Dorosz
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Proceedings Volume 10325, Optical Fibers and Their Applications 2017; 1032505 (2017) https://doi.org/10.1117/12.2270202
Event: 17th Conference on Optical Fibres and Their Applications, 2017, Supraśl, Poland, Poland
Abstract
In this article, bismuth-germanate oxide glasses doped and co-doped with rare earth ions have been synthesized. Fabricated glass is characterized by good thermal stability (ΔT = 127°C) which are necessary for further forming them into photonic waveguides and low phonon-energy (ħω = 724 cm-1), much important in upconversion processes. Besides, presented glasses have a low absorption coefficient (<0.5 cm-1) in examined visible wavelength range. Upconversion luminescence spectra under 980 nm laser diode excitation have been observed in glasses doped with Er3+ and co-doped with Er3+/Eu3+, Er3+/Ho3+, Er3+/Pr3+ and Er3+/Nd3+ ions. According to emission parameters analysis, higher luminescence intensity in co-doped samples resulting from energy transfer phenomenon between active ions was observed. This demonstrates that bismuth-germanate oxide glass co-doped with proper rare earth elements system is an attractive material for applications working in visible range.
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Tomasz Ragin, Marcin Kochanowicz, Jacek Zmojda, Piotr Miluski, Piotr Jelen, Maciej Sitarz, and Dominik Dorosz "Upconversion luminescence in bismuth-germanate oxide glasses co-doped with lanthanide ions", Proc. SPIE 10325, Optical Fibers and Their Applications 2017, 1032505 (10 February 2017); https://doi.org/10.1117/12.2270202
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KEYWORDS
Glasses
Luminescence
Upconversion
Energy transfer
Ions
Lanthanides
Oxides
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