Physical and Luminescence Study of Nd3+ ions doped Phosphate Glass for Lasing Applications

Lithium gadolinium phosphate glass doped with Neodymium oxide was prepared by conventional melt quenching technique with chemical composition of 17Li(2)O(3):17Gd(2)O(3) :(66-x) P2O5:xNd(2)O(3) where x=0.0, 0.05, 0.1, 0.5, 1.0, 2.0mol%. The physical and luminescent properties of the prepared glass are systematically analyzed for solid stat lighting applications. The density, molar volume and refractive index measured for the prepared glass samples. The density and refractive index show the increasing trend with incrassating concentration of Nd3+ ions while molar volume decrease with increasing concentration of Nd3+ ions. The absorption spectra are analyzed under the Uv-Vis NIR region. The emission spectra for our glass is also recorded which show three dominant peaks at 904, 1063 and 1330nm which correspond to the I-4(9/2), I-4(11/2) and I-4(13/2) transitions respectively. Judd-Ofelt theory had been used to obtain the J-O parameters (Omega(2), Omega(4) and Omega(6)), oscillator strength, radiative transition probability, stimulated emission cross-section and branching ratio. The J-O parameters show Omega(4) > Omega(6) > Omega(2) trend which are in agreement with other studies. (C) 2019 Elsevier Ltd. All rights reserved.