Fig. 5
From: Topological protection of optical skyrmions through complex media
Skyrmions through spatially varying diattenuators. The output Stokes field of a first-order Néel-type Skyrmion with spatially varying degree of polarization after passing through a horizontal linear diattenuator with spatially varying diattenuation. This figure follows a similar structure as Fig. 4, where the spatial varying parameters P and κ are represented by contour plots in the two innermost rings. The Skyrmion numbers are computed using a central difference for partial derivatives and the ‘nquad’ function from SciPy for integration
