Spectroscopic Investigation of Pr³⁺ Doped Zinc Lithium Bismuth Borate Glasses

Beena Bhatia^1,* and Vishal Parihar²

^1,2Ceramics Laboratory, Department of Physics, Jai Narain Vyas University, Jodhpur-342001(Raj.), India

Optical absorption and fluorescence spectra of Pr³⁺ doped bismuth borate glasses having glass system (60-x)B₂O₃-10Bi₂O₃-20Li₂O-10ZnO-xPr₆O₁₁ where x=1, 1.5 and 2 mol% have been recorded. Judd-Ofelt theory have been applied to compute oscillator strength and intensity parameters Ω_λ (λ=2, 4 and 6).  These parameters have been used to calculate the radiative properties of glasses viz., spontaneous emission probability (A), radiative life time (t_R), fluorescence branching ratio (β_R) and stimulated emission cross section (σ_p) of various emission lines have been evaluated. The results obtained suggest that these new materials can be considered as an interesting candidate for laser applications.

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