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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Luminescent and thermo-optical properties of Nd3+-doped yttrium aluminoborate laser glasses

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Author(s):
Santos, C. N. [1, 2, 3] ; Mohr, D. [4] ; Silva, W. F. [5] ; de Camargo, A. S. S. [4, 3] ; Eckert, H. [4] ; Li, M. S. [3] ; Vermelho, M. V. D. [5] ; Hernandes, A. C. [3] ; Ibanez, A. [1, 2] ; Jacinto, C. [5]
Total Authors: 10
Affiliation:
[1] CNRS, Inst Neel, F-38042 Grenoble 9 - France
[2] Univ Grenoble 1, F-38042 Grenoble 9 - France
[3] Univ Sao Paulo, Inst Fis Sao Carlos, BR-13560960 Sao Paulo - Brazil
[4] Univ Munster, Inst Phys Chem, D-48149 Munster - Germany
[5] Univ Fed Alagoas, Inst Fis, BR-57072970 Maceio, Alagoas - Brazil
Total Affiliations: 5
Document type: Journal article
Source: Journal of Applied Physics; v. 106, n. 2 JUL 15 2009.
Web of Science Citations: 14
Abstract

In this work we performed a thorough spectroscopic and thermo-optical investigation of yttrium aluminoborate glasses doped with neodymium ions. A set of samples, prepared by the conventional melt-quenching technique and with Nd2O3 concentrations varying from 0.1 to 0.75 mol %, were characterized by ground state absorption, photoluminescence, excited state lifetime measurements, and thermal lens technique. For the neodymium emission at 1064 nm (F-4(3/2) -> I-4(11/2) transition), no significant luminescence concentration quenching was observed and the experimental lifetime values ranged around 70 mu s. The obtained values of thermal conductivity and diffusivity of approximately 10.3 x 10(-3) W / cm K and 4.0 x 10(-3) cm(2) / s, respectively, are comparable to those of commercial laser glasses. Moreover, the fluorescence quantum efficiency of the glasses, calculated using the Judd-Ofelt formalism and luminescence decay, lies in the range from 0.28 to 0.32, larger than the typical values obtained for Nd3+ doped YAl3(BO3)(4) crystals. (c) 2009 American Institute of Physics. {[}DOI: 10.1063/1.3176503] (AU)