Radiative transition probabilities of Er3+ in yttria stabilized cubic zirconia crystals

Abstract

Er3+ doped yttria stabilized cubic zirconia crystals were prepared by the skull melting method. From the absorption maxima in the range 330–1700 nm the eigenvectors for Er3+ were calculated. This was followed by the calculation of the transition matrix elements between each pair of electronic levels. The Judd–Ofelt parameters were obtained by fitting the measured oscillator strengths to their predicted values using the above calculated matrix elements. These, combined with the Judd–Ofelt parameters, yielded radiative transition probabilities. Stimulated cross sections of the laser transitions were calculated and possible laser levels indicated.

Optical properties of Er3+-singly doped and Er3+/Yb3+-codoped novel oxyfluoride glasses

“…For Er 3+ ion, the linear relations are given below by fitting different data [22,[27][28][29][30][31][32] (Fig. 5)…”

Upconversion luminescence in Er3+ doped and Er3+/Yb3+ codoped zirconia and hafnia nanocrystals excited at 980 nm

“…However, since this approximation is not enough to describe the luminescence signal from level 5, an analysis was made to investigate the role played by the CR, ET, and radiative and nonradiative decays for n 5 . The radiative decay rate was taken from the experimental data for ZrO 2 bulk crystal and the nonradiative decay rate was estimated using the energy gap law with parameters of ZBLAN glass 20,21 that are not expect to be much different than for ZrO 2 and HfO 2 . The estimated value of the total transition rate from level 5 is 1.6ϫ 10 4 s −1 corresponding to a decay time of 62.5 s. Since this time is very short and does not find correspondence to the measured data, the dynamical response observed in Fig.…”

Spectroscopic properties of Er3+ in a oxyfluoride glass and upconversion and temperature sensor behaviour of Er3+/Yb3+-codoped oxyfluoride glass

“…For Er 3 + ion, the linear relations are given below by fitting different data [28][29][30][31][32][33][34] (Table 3 and Fig. 2):…”