Multiple Stokes and anti-Stokes χ(3)-nonlinear generation in the tetragonal crystal of CaYAlO4 was observed at 300 K and ≈ 9 K under picosecond excitation in the visible spectral range. All the recorded Raman induced laser lines were identified and attributed to the SRS-promoting vibration mode of octahedral [AlO6]-9 units of the crystal.

中文翻译：

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Ln3+激光离子在四方CaYAlO4晶体基质中的高阶受激拉曼散射

在可见光谱范围内的皮秒激发下，在 300 K 和 ≈ 9 K 下观察到 CaYAlO4 四方晶体中的多重斯托克斯和反斯托克斯 χ(3)-非线性生成。所有记录的拉曼诱导激光线都被识别并归因于晶体的八面体 [AlO6]-9 单元的 SRS 促进振动模式。