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根据位相匹配条件和应该满足的边界方程,在光轴取向任意的条件下,得到了光在两单轴晶体界面的反射和折射的理论表达式,给出了更普遍的公式计算光能量损失以及两束折射光的能量比。数值模拟表明所得结果满足能量守恒,光轴的取向和入射角大小对晶体中折射的o光、e光的能量比有重大影响,但是对反射率影响很小。只要知道了晶体的有关参数及入射条件,利用所给表达式可以计算各光束光能量比,为晶体器件特性研究提供了有力的工具。由于对光轴取向和入射角度没有任何限制,公式具有普遍性。
According to the phase matching condition and the boundary equation that should be satisfied, the theoretical expression of light reflection and refraction at the interface of two uniaxial crystals is obtained under the condition of optical axis orientation. The more general formulas are given to calculate the light energy loss and The energy ratio of two refracted lights. Numerical simulations show that the obtained results satisfy the conservation of energy. The orientation of the optical axis and the incident angle have a significant effect on the energy ratio of the o-light and the e-light refracted in the crystal, but have little effect on the reflectivity. As long as the relevant parameters of the crystal and the incident conditions are known, the light energy ratio of each beam can be calculated by using the expression provided, which provides a powerful tool for the study of the characteristics of the crystal device. Because of the optical axis orientation and incident angle without any restrictions, the formula is universal.