Abstract
A new series of Sm3+ doped Alkali borate glasses have been prepared following the conventional melt quenching technique. The optical properties of the prepared glasses were explored through absorption, luminescence and decay measurements. The Judd-Ofelt (JO) intensity parameters Ωλ (λ=2, 4 and 6) were evaluated from the absorption spectra to examine the symmetry of the ligand environment around Sm3+ ions site. By using the JO parameters and refractive indices of the studied glasses, radiative parameters such as transition probability (A), branching ratios (βR), stimulated emission cross-section (σPE) and radiative lifetime (τR) have been determined from the emission spectra following the JO theory. The excited state lifetime and the quantum efficiency of the Sm3+ doped title glasses pertaining to the 4G5/2 excited level have been determined through lifetime measurements and the results were discussed and reported.
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