An approach that employs the aperture in front of the Raman crystal for the generation of high-order stimulated Raman scattering (SRS) was proposed. Furthermore, first- to fifth-order anti-Stokes components (508, 486, 465, 447, and 430 nm) and first- to fifth-order Stokes components (559, 588, 621, 658, and 700 nm) were generated by a potassium gadolinium tungstate (KGW) Raman generator, which were the highest-order SRS generated in KGW. The effect of the aperture was discussed, and the angular dependence of Stokes was calculated theoretically and experimentally.

中文翻译：

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KGd(WO ₄ ) _{2 中}采用孔径的高阶受激拉曼散射

提出了一种利用拉曼晶体前面的孔径来产生高阶受激拉曼散射 (SRS) 的方法。此外，一阶到五阶反斯托克斯分量（508、486、465、447 和 430 nm）和一阶到五阶斯托克斯分量（559、588、621、658 和 700 nm）是由钨酸钾 (KGW) 拉曼发生器，这是 KGW 中产生的最高阶 SRS。讨论了孔径的影响，并从理论上和实验上计算了斯托克斯的角度依赖性。