Erbium up conversion in SiO2-TiO2 sol gel powders

J. Castañeda-Contreras; M. A. Menéses-Nava; O. Barbosa-García; R. A. Rodríguez Rojas; M. V. Félix

doi:10.1117/12.674464

10 February 2006 Erbium up conversion in SiO₂-TiO₂ sol gel powders

J. Castañeda-Contreras, M. A. Menéses-Nava, O. Barbosa-García, R. A. Rodríguez Rojas, M. V. Félix

Proceedings Volume 6046, Fifth Symposium Optics in Industry; 60460W (2006) https://doi.org/10.1117/12.674464
Event: Fifth Symposium Optics in Industry, 2005, Santiago De Queretaro, Mexico

Abstract

Erbium doped, SiO₂ - TiO₂ powders were fabricated using the sol gel technique. The Er³⁺ concentrations were 2%, 5% and 10% (mol), and 10%, 25%, 50%, 70% for the TiO₂. A strong, green up-conversion luminescence was found in the samples when exciting at 1532 nm and 978 nm. The recorded spectra showed less intense emissions at 410 nm and 675 nm. The excitation and emission mechanisms proposed were supported on experimental results, such as the absorption and emission spectra, the decay times and the luminescence intensity versus pump power.

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J. Castañeda-Contreras, M. A. Menéses-Nava, O. Barbosa-García, R. A. Rodríguez Rojas, and M. V. Félix "Erbium up conversion in SiO₂-TiO₂ sol gel powders", Proc. SPIE 6046, Fifth Symposium Optics in Industry, 60460W (10 February 2006); https://doi.org/10.1117/12.674464

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