Sheppard Colin J R
J Opt Soc Am A Opt Image Sci Vis. 2016 Jul 1;33(7):1331-40. doi: 10.1364/JOSAA.33.001331.
An arbitrary Mueller matrix can be decomposed into a sum of up to four deterministic Mueller-Jones matrices, with strengths given by the eigenvalues of an associated Hermitian matrix. A geometrical representation of the eigenvalues in terms of the matrix invariants, using a barycentric (quaternary) plot, is presented. Different polarization purity measures can be expressed in terms of the barycentric coordinates.
任意的穆勒矩阵可以分解为至多四个确定性的穆勒 - 琼斯矩阵之和，其强度由相关厄米矩阵的特征值给出。利用重心（四元）图给出了特征值根据矩阵不变量的几何表示。不同的偏振纯度度量可以用重心坐标来表示。
