Abstract Pr3+ ions doped Lu0.7Y0.3AlO3 (LuYAP) crystal was successfully grown by the Czochralski method. Polarized absorption and polarized emission spectrum were recorded at room temperature. Using Judd-Ofelt theory, the intensity parameters Ωt, eff (t = 2, 4, 6) were calculated to be 3.52 × 10−20 cm2, 1.43 × 10−20 cm2, 15.88 × 10−20 cm2, respectively. Based on F-L formula, the emission cross-sections peaking at 624 nm were calculated to be 1.67 × 10−19 cm2, 8.71 × 10−20 cm2 and 8.00 × 10−20 cm2 for the a, b, and c polarization. The radiative lifetime and fluorescence lifetime was calculated to be 17.85 μs and 13.47 μs, respectively. All the results indicate that Pr:LuYAP is a potential material for visible laser operation.

中文翻译：

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Pr:LuYAP晶体的偏振光谱和Judd-Ofelt分析

摘要 采用直拉法成功生长了Pr3+离子掺杂的Lu0.7Y0.3AlO3 (LuYAP)晶体。在室温下记录偏振吸收和偏振发射光谱。使用 Judd-Ofelt 理论，强度参数 Ωt、eff (t = 2, 4, 6) 分别计算为 3.52 × 10−20 cm2、1.43 × 10−20 cm2、15.88 × 10−20 cm2。根据 FL 公式，对于 a、b 和 c 偏振，在 624 nm 处达到峰值的发射截面计算为 1.67 × 10−19 cm2、8.71 × 10−20 cm2 和 8.00 × 10−20 cm2。计算出的辐射寿命和荧光寿命分别为 17.85 μs 和 13.47 μs。所有结果表明 Pr:LuYAP 是一种用于可见激光操作的潜在材料。