Xu Xiangru, Huang Wei, Xu Mingfei
Opt Express. 2016 Mar 7;24(5):4906-4912. doi: 10.1364/OE.24.004906.
Polarization aberration (PA) is a serious issue that affects imaging quality for optical systems with high numerical aperture. Numerous studies have focused on the distribution rule of PA on the pupil, but the field remains poorly studied. We previously developed an orthonormal set of polynomials to reveal the pupil and field dependences of PA in rotationally symmetric optical systems. However, factors, such as intrinsic birefringence of cubic crystalline material in deep ultraviolet optics and tolerance, break the rotational symmetry of PA. In this paper, we extend the polynomials from rotationally symmetric to M-fold to describe the PA of M-fold optical systems. Two examples are presented to verify the polynomials.
偏振像差（PA）是一个严重的问题，会影响高数值孔径光学系统的成像质量。许多研究都集中在PA在光瞳上的分布规律，但该领域的研究仍很薄弱。我们之前开发了一组正交多项式，以揭示旋转对称光学系统中PA对光瞳和视场的依赖性。然而，诸如深紫外光学中立方晶体材料的固有双折射和公差等因素，破坏了PA的旋转对称性。在本文中，我们将多项式从旋转对称扩展到M重，以描述M重光学系统的PA。给出了两个例子来验证这些多项式。
