Dy³⁺-doped Y₂O₃ ceramics were fabricated by Spark Plasma Sintering method. The effect of sintering temperature on the microstructure and the optical transmittance of the ceramics was studied. The maximum in-line transmittance of Dy:Y₂O₃ ceramics with thickness of 1 mm was 74.5% at 574 nm when sintering temperature was 1550 ℃. The spectroscopic parameters were determined by Judd-Ofelt theory based on the room temperature absorption spectra. The peak emission cross section for the ⁴F_9/2→⁶H_13/2 transition was calculated to be 0.569×10^-20 cm². The fluorescence decay curve and quantum efficiency of the ⁴F_9/2 multiplet were measured to be 269.2 µs and 37.1%, respectively.

通过等离子烧结法制备了Dy ³⁺掺杂的Y ₂ O ₃陶瓷。研究了烧结温度对陶瓷显微组织和透光率的影响。烧结温度为1550℃时，厚度为1 mm的Dy：Y ₂ O ₃陶瓷在574 nm下的最大在线透射率为74.5％。根据室温吸收光谱，通过Judd-Ofelt理论确定光谱参数。为峰值发射的横截面⁴ ˚F _9/2 → ⁶ ħ _13/2过渡计算为0.569×10 ^-20厘米²。经测定，⁴ F _9/2多重_峰的荧光衰减曲线和量子效率分别为269.2 µs和37.1％。