Niobium incorporation into rare-earth doped aluminophosphate glasses: Structural characterization, optical properties, and luminescence

José Henrique Faleiro, Noélio O. Dantas, Anielle Christine Almeida Silva, Helliomar P. Barbosa, Bruno Silva, Karmel de Oliveira Lima, Guilherme de Freitas Silva, Rogéria Rocha Gonçalves, Rodrigo Ferreira Falci, Younès Messadeq, Isabela Dias de Oliveira Branco, Bianca M. Cerrutti, Henrik Bradtmüller, Hellmut Eckert, Jefferson Luís Ferrari