The Er³⁺-doped Lu₂O₃ ceramics were successfully prepared by high temperature vacuum sintering of nanopowders using lantana as a sintering additive. The absorption coefficient and absorption cross-section of Er³⁺ ions in Lu₂O₃ ceramics at 980 nm were 3.3 cm⁻¹ and 1.65·10⁻²¹ cm², respectively. The emission cross-section at 1534 nm was calculated to be 9.1·10⁻²¹ cm². The fluorescence decay lifetime of ⁴I_13/2 energy level was 7.2 ± 0.2 ms. The positive gain cross-section at 1534 nm can be achieved if the inversion ratio P is 0.5 or higher. All results show that Er:Lu₂O₃ ceramics can be used as potential active medium for mid-infrared lasers operated at 1.5 μm.

以马Er丹为烧结助剂，对纳米粉体进行了高温真空烧结，成功制备了掺Er ^3+的Lu ₂ O ₃陶瓷。Lu ₃ O ₃陶瓷在980 nm处的Er ³⁺离子的吸收系数和吸收截面分别为3.3 cm ^-1和1.65·10 ^-21  cm ²。计算出在1534nm处的发射截面为9.1·10 ^-21  cm ²。荧光衰减寿命为⁴ I _13/2能级为7.2±0.2毫秒。如果反转比P为0.5以上，则可以得到1534nm处的正增益截面。所有结果表明，Er：Lu ₂ O ₃陶瓷可用作在1.5μm下工作的中红外激光的潜在活性介质。