作者: K. Selvaraju , K. Marimuthu
DOI: 10.1016/J.JLUMIN.2011.12.056
关键词:
摘要: Abstract Er 3+ doped boro-tellurite glasses have been prepared by the conventional melt quenching technique with chemical composition (39− x ) B 2 O 3 +30TeO +15MgO+15K O+ (where =0.01, 0.1, 1, and 3 wt%). The structural analysis of were made through XRD, FTIR spectral measurements optical absorption, luminescence to analyze behavior glasses. bonding parameters determined from absorption spectra found be ionic in nature. experimental oscillator strengths used determine Judd–Ofelt parameters. Judd−Ofelt explore important radiative such as transition probability ( A ), stimulated emission cross-section σ P E branching ratios β R transitions H 9/2 → 4 I 15/2 11/2 S 3/2 trivalent erbium ions. band gap energy opt values corresponding direct indirect allowed Urbach calculated discussed similar studies. spectroscopic studied varying ion content results compared