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根据广泛使用的双折射材料的性质以及滤波器入射角有限的特点,讨论了晶体中o光和e光的关系;根据光的折射定律,将光在晶体表面的折射效果表述为输入、输出折射率矩阵;建立了从入射面坐标系到晶体本征坐标系的坐标变换矩阵;推出了简化的扩展琼斯矩阵。整个过程物理思想清楚,每个矩阵表示的物理意义直观、明确,得到的结果简单,计算量小。用于Solc滤波器消光比的研究,给出了在任意入射角下计算多块晶片Solc滤波器传输特性的一般表达式,对Solc滤波器锥光干涉图作了数值模拟。适用于计算各种类型双折射滤波器的离轴消光比。
According to the properties of the widely used birefringent material and the limited incident angle of the filter, the relationship between the o and e light in the crystal is discussed. According to the law of light refraction, the refraction effect of light on the crystal surface is expressed as input and output refraction Rate matrix. The coordinate transformation matrix from the incident surface coordinate system to the crystal intrinsic coordinate system is established. A simplified extended Jones matrix is introduced. The whole process of physical ideas clear, each matrix that the physical meaning of intuition and clarity, the results obtained are simple, small amount of calculations. For the study of the extinction ratio of Solc filter, the general expression for calculating the transmission characteristic of Solc filter with multi-chip at any incident angle is given. The numerical simulation of cone-beam interferogram of Solc filter is given. It is suitable for calculating the off-axis extinction ratio of various types of birefringent filters.