Abstract The Yb3+: CaLaGa3O7 crystal with high-quality was grown successfully by the Czochralski method. The structure parameters of Yb3+: CaLaGa3O7 crystal are determined by the X-ray Rietveld refinement method. The absorption and fluorescence spectra, fluorescence lifetime and laser performance parameters were investigated in detail. The large absorption cross-section (1.14 × 10−20 cm2 for π-polarization and 1.06 × 10−20 cm2 for σ-polarization) of the crystal at around 980 nm indicates that the crystal can be pumped efficiently by the commercialized InGaAs laser diode. The stimulated emission-cross section at 1004 nm was calculated to be 1.11 × 10−20 cm2 for π-polarization and 1.04 × 10−20 cm2 for σ-polarization. The above results reveal that Yb3+: CaLaGa3O7 crystal can be regarded as a potential candidate for realizing tunable solid-state and ultrashort pulsed lasers with LD pumping.

中文翻译：

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一种具有无序黄长石结构的潜在超快脉冲激光晶体：Yb3+：CaLaGa3O7

摘要 采用直拉法成功生长了高质量的Yb3+:CaLaGa3O7晶体。Yb3+：CaLaGa3O7 晶体的结构参数通过X-ray Rietveld 细化法确定。详细研究了吸收光谱和荧光光谱、荧光寿命和激光性能参数。晶体在 980 nm 附近的大吸收截面（π 偏振为 1.14 × 10−20 cm2，σ 偏振为 1.06 × 10−20 cm2）表明该晶体可以被商业化的 InGaAs 激光二极管有效泵浦. 1004 nm 处的受激发射截面计算为 1.11 × 10−20 cm2 π 偏振和 1.04 × 10−20 cm2 σ 偏振。上述结果表明 Yb3+：