## Stokes parameters

https://doi.org/10.1351/goldbook.S06030
Of elliptically polarized incident radiation, these are given by $s_{0}^{0}=E_{1}^{0}+E_{2}^{0}$ $s_{1}^{0}=E_{1}^{0}- E_{2}^{0}$ $s_{2}^{0}=2\ \sqrt{E_{1}^{0}\ E_{2}^{0}}\ \cos \delta ^{0}$ $s_{3}^{0}=2\ \sqrt{E_{1}^{0}\ E_{2}^{0}}\ \sin \delta ^{0}$ where E1^0 and E2^0 specify the irradiances of the incident light polarized with their electric vectors vibrating perpendicular and parallel to the scattering, respectively and δ 0 is the phase difference between these electric vectors.