@article{articled94cd4ad,
title   = {High fluorescence quantum efficiency of 1.8 'mü'm emission in Tm-doped low silica calcium aluminate glass determined by thermal lens spectrometry},
author = {Oliveira, S. L. and Lima, S. M. and Catunda, Tomaz and Nunes, Luiz Antônio de Oliveira and Rohling, J. H. and Bento, A. C. and Baesso, Mauro Luciano},
year = {2004},
doi = {10.1063/1.1640782},
journal   = {Applied Physics Letters}
}