The equations of caustic curve and its initial curve for a crack illuminated by an oblique incident light beam in reflection arrangement were deduced using the space analytic geometry method.

本文用空间解析几何方法，推导了在一般非平行斜入射光条件下，裂纹体表面所形成的反射焦散线和初始曲线的方程。

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When the initial power is equal to the critical power and light beam is incident at the beam waist, the elliptical Hermite-Gaussian spatial optical soliton is obtained.

当初始功率等于这一临界功率，光束从光腰处入射时，可得到椭圆厄米高斯空间光孤子。

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According to the multi-beam interference occurred at the air gap for the polarizing light of Taylor prism, the transmitted light intensity depends on the incident Angle.

通过泰勒棱镜的单色偏振光束在空气隙处发生多束光的干涉，使得透射光强依赖于入射角的大小。

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