Investigation of mid-infrared emission characteristics and energy transfer dynamics in Er(3+) doped oxyfluoride tellurite glass. Academic Article uri icon

abstract

  • Er(3+) doped oxyfluoride tellurite glasses have been prepared. Three Judd-Ofelt parameters t (t=2, 4, 6) and radiative properties are calculated for prepared glasses. Emission characteristics are analyzed and it is found that prepared glasses possess larger calculated predicted spontaneous transition probability (39.97s(-1)), emission cross section em (10.18 10(-21)cm(2)) and emeff (945.32 10(-28)cm(3)), corresponding to the 2.7 m emission of Er(3+): (4)I11/2(4)I13/2 transition. The results suggest that the prepared glasses might be appropriate optical material for mid-infrared laser application. Moreover, rate equation analysis which is rarely used in bulk glass has been carried out to explain the relationship between emission intensity and Er(3+) concentration. The calculation results show that with the increment of Er(3+) concentration, the energy transfer up-conversion rate of (4)I13/2 state increases while the rate of (4)I11/2 state reduces, resulting in the change of 2.7 m emission.

published proceedings

  • Sci Rep

altmetric score

  • 0.25

author list (cited authors)

  • Chen, F., Wei, T., Jing, X., Tian, Y., Zhang, J., & Xu, S.

citation count

  • 57

complete list of authors

  • Chen, Fangze||Wei, Tao||Jing, Xufeng||Tian, Ying||Zhang, Junjie||Xu, Shiqing

publication date

  • June 2015