Absorption Studies of Tripositive Neodymium Doped Lithium Bismuth Borate Glasses

B. Bhatia^1,* and V. Parihar²

^{1,*, 2}Ceramic Laboratory, Department of Physics, Jai Narain Vyas University Jodhpur 342001(Raj.)India

Glasses having composition (60-x) B₂O₃-10Bi₂O₃-30Li₂O-xNd₂O₃ with x =1, 1.5 and 2 were prepared by melt quenching technique. The amorphous nature of the prepared glass samples was confirmed by X-ray diffraction. The absorption spectra of three Nd³⁺ lithium bismuth borate (LBB) glasses have been recorded at room temperature. From these spectral data various energy interaction parameters like Slater-Condon parameters F_k (k=2, 4 and 6), Lande’ parameters x_4f and Racah parameters E^k (k=2, 4 and 6) have been computed. Nephelauxetic ratio (β’) and bonding parameters (b^1/2) have also been computed from these parameters to study the nature of bonding in doped glasses. The intensities of the f-f transitions in the absorption spectra have been analyzed by the application of the Judd-Ofelt theory.

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