Phase Singularities to Polarization Singularities

Figure 4

Rotation of the azimuths of the surrounding SOP states around a singular point: (a) a left-handed positive index C-point with ; (b) a negative index V-point with . The pink arrow denotes the sense of traversal of a closed path around the singularity, i.e., anticlockwise. The green arrow depicts the sense of rotation of the major axes of ellipses (plane of polarization of linearly polarized state in case of a V-point) around the singularity.

(a)

(b)