“猫眼”逆反射器的偏振特性分析

发布时间：2018-06-23 04:22

本文选题：“猫眼”逆反射器 + 三维琼斯矩阵法　；参考：《红外与激光工程》2017年06期

【摘要】：根据矢量场的光线追迹方法和光路的几何关系,推导得出入射高度(归一化)、折射率和逆反发散角之间的变化关系,以逆反发散角最小为目的,得出"猫眼"逆反射器的最佳设计参数,并利用ZEMAX进行光学设计。基于三维琼斯矩阵法对所设计的"猫眼"逆反射器进行了偏振光线追迹和偏振特性研究,重点分析了"猫眼"逆反射器的位相延迟和二向衰减特性及其对光束偏振态的影响,理论计算表明:"猫眼"逆反射器在出瞳面上的位相延迟最大不超过0.3°,二向衰减均低于0.027,且线偏振态入射"猫眼"逆反射器,出射仍为线偏振态,即偏振方向保持不变。对此,利用FRED对所设计的"猫眼"逆反射器进行了以水平、45°、圆、椭圆偏振态入射的仿真模拟,验证其理论分析的正确性。结果表明:经"猫眼"逆反射器逆反后的偏振态仍与入射偏振态相同,偏振方向不发生改变,这与理论计算结果相一致,即"猫眼"逆反射器具有保偏振态不变的效应,这对"猫眼"逆反射器的推广应用具有重要意义。
[Abstract]:According to the ray tracing method of vector field and the geometric relation of the optical path, the relation between the incident height (normalized), refractive index and inverse divergence angle is derived, with the aim of minimizing the inverse divergence angle. The optimum design parameters of cat eye inverse reflector are obtained, and the optical design is carried out by ZEMAX. Based on the three-dimension Jones matrix method, the polarized ray tracing and polarization characteristics of the designed "cat eye" inverse reflector are studied. The phase delay and two-direction attenuation characteristics of the "cat eye" inverse reflector and its effect on the polarization state of the beam are analyzed. The theoretical calculation shows that the maximum phase delay of the "cat eye" inverse reflector on the exit pupil surface is not more than 0.3 掳, the two-direction attenuation is less than 0.027, and the linear polarization state of the "cat eye" inverse reflector is still linearly polarized, that is, the polarization direction remains unchanged. In order to verify the correctness of the theoretical analysis, the designed cat eye inverse reflector is simulated by Fred with 45 掳horizontal, circular and elliptical polarization incidence. The results show that the polarization state of the "cat eye" inverse reflector is still the same as the incident polarization state, and the polarization direction does not change, which is consistent with the theoretical results, that is, the "cat eye" inverse reflector has the effect of keeping the polarization state unchanged. This is of great significance to the popularization and application of cat eye inverse reflector.
【作者单位】：长春理工大学光电工程学院;
【基金】：国家自然科学基金(11474037)
【分类号】：O436.3

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