@article{article9a9a6ba9,
title   = {Fluorescence quantum efficiency measurements of excitation and nonradiative deexcitation processes of rare earth 4 f-states in chalcogenide glasses},
author = {Lima, S M and de Camargo, Andrea Simone Stucchi and Nunes, Luiz Antônio de Oliveira and Catunda, Tomaz and Hewak, D W},
year = {2002},
doi = {10.1063/1.1495879},
journal   = {Applied Physics Letters}
}