@inproceedings{737cf838c3cf48b282a8f3c1aa7a68be,
title = "Photothermal spectroscopic characterization in telIurite glasses codoped with rare-earth ions",
abstract = "Thermal Lens (TL) and spectroscopic characterizations were performed in 70TeO2-19WO3-7Na2O-4Nb2O 5 (mol%) tellurite glasses. TL measurements were accomplished in Er3+/Tm3+ co-doped tellurite glasses in function of the Tm2O3 concentration (0.4 -1.6 ×1020 ions/cm3). Fluorescence spectra at 488 nm showed that Er 3+/Tm3+co-doped tellurite glasses present several emission bands between (500-1800) nm. However, the more iniense emission bands correspond to the Er3+ and Tm3+ transitions ( 4I13/2 → 4I15/2 and 3F4 → 3H6), respectively. The absolute nonradiative quantum efficiency (φ) was determined by TL method. Higher values of φ were obtained with the increase of Tm2O 3 concentration inside of the Er3+/Tm3+ co-doped tellurite glasses. These results are corroborated by the Judd-Ofelt calculations.",
keywords = "Er/tm co-doped tellurite glasses, Judd-Ofeld, Spectroscopic properties, Thermal Lens",
author = "Viviane Pilla and Chillcce, {Enver F.} and Eugenio Rodriguez and Tomaz Catunda and Egberto Munin and Cesar, {Carlos L.} and Barbosa, {Luiz C.}",
year = "2006",
doi = "10.1117/12.646583",
language = "Ingl{\'e}s",
isbn = "081946158X",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "Proceedings of SPIE - The International Society for Optical Engineering",
note = "Optical Components and Materials III ; Conference date: 23-01-2006 Through 25-01-2006",
}