Abstract

Tripositive neodymium ion doped phosphate glass has been prepared by melt-quenching technique. The final composition (by weight) was approximately Na(PO₃)₆70%-BaO15%-PbO 10%-Al₂O₃ 5%-R Ln (Where R=0.5% and Ln= Nd⁺³). The experimental oscillator strengths were calculated from the areas under the absorption bands. Judd-Offelt parameters (Ω_?) evaluated using the observed spectral intensities have been used to compute various laser parameters viz., spontaneous emission probability (A), radiative life time (τ) and stimulated emission cross-section (σ_p). The bonding environment surrounding the rare earth (RE) ion has also been discussed.

Keywords

Phosphate glass, Fluorescence spectrum, Absorption spectrum, Radiative properties