The angle-impact Wigner function (AIWF) is a tool that assigns weights to rays in a way such that ray tracing can be used to exactly model the irradiance and polarization properties of nonparaxial, partially coherent, partially polarized electromagnetic fields. Although the AIWF offers computational advantages over more conventional wave propagation integrals, in practice, the large number of rays that must be traced has proved to be a significant bottleneck. We demonstrate an efficient method to implement AIWF propagation algorithms inspired by a plenoptic field representation. We illustrate the method by computing irradiance and polarization properties of several paraxial and nonparaxial fields.

中文翻译：

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非近轴Wigner函数的全光场表示启发了相干矩阵的有效传播。

角冲击威格纳函数（AIWF）是一种工具，可以通过以下方式为光线分配权重，使得可以使用光线跟踪来精确建模非傍轴，部分相干，部分极化的电磁场的辐照度和极化特性。尽管AIWF提供了比更常规的波传播积分更大的计算优势，但实际上，必须追踪的大量光线已被证明是一个重要的瓶颈。我们展示了一种有效的方法来实现受全光场表示启发的AIWF传播算法。我们通过计算几个近轴场和非近轴场的辐照度和偏振特性来说明该方法。