99732 20230519145505.0 doi 10.3390/app11031137 sideral 123232 ART-2021-123232 eng Sola, D. (orcid)0000-0002-5998-2251 Spectroscopy and near-infrared to visible upconversion of er3+ ions in aluminosilicate glasses manufactured with controlled optical transmission 2021 Access copy available to the general public Unrestricted In this work we report on the spectroscopic properties and the near-infrared to visible upconversion of Er3+ ions in aluminosilicate glasses manufactured by directionally solidification with the laser floating zone technique. Glasses were manufactured in a controlled oxidizing atmosphere to provide them with high optical transmission in the visible spectral range. Absorption and emission spectra, and lifetimes were assessed in both the visible and the near infrared spectral range. Green upconversion emissions of the2H11/2¿4I15/2 and4S3/2¿4I15/2 transitions at 525 nm and 550 nm attributed to a two-photon process were observed under excitation at 800 nm. Mechanisms responsible for the upconversion luminescence were discussed in terms of excited state absorption and energy transfer upconversion processes. Excitation spectra of the upconverted emission suggest that energy transfer upconversion processes are responsible for the green upconversion luminescence. info:eu-repo/grantAgreement/EC/H2020/795630/EU/Direct Laser Interference Patterning of Ophthalmic Polymers/LasInPOP This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 795630-LasInPOP info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 2.838 2021 ENGINEERING, MULTIDISCIPLINARY 39 / 92 = 0.424 2021 Q2 T2 PHYSICS, APPLIED 76 / 161 = 0.472 2021 Q2 T2 MATERIALS SCIENCE, MULTIDISCIPLINARY 218 / 345 = 0.632 2021 Q3 T2 CHEMISTRY, MULTIDISCIPLINARY 100 / 180 = 0.556 2021 Q3 T2 0.507 2021 Engineering (miscellaneous) 2021 Q2 Computer Science Applications 2021 Q2 Process Chemistry and Technology 2021 Q2 Materials Science (miscellaneous) 2021 Q2 Fluid Flow and Transfer Processes 2021 Q2 3.7 2021 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Miguel, A. Arias-Egido, E. (orcid)0000-0002-0782-3160 Peña, J.I. Universidad de Zaragoza (orcid)0000-0003-2242-6822 5001 065 Universidad de Zaragoza Dpto. Ciencia Tecnol.Mater.Fl. Área Cienc.Mater. Ingen.Metal. 11, 3 (2021), 1137 [10 pp] Appl. sci. Applied Sciences (Switzerland) 2076-3417 829822 http://zaguan.unizar.es/record/99732/files/texto_completo.pdf Versión publicada 2770842 http://zaguan.unizar.es/record/99732/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:99732 articulos driver 2023-05-18-15:04:43 ARTICLE