polarization_vectors

marxs.math.polarization.polarization_vectors(dir_array, angles)

Converts polarization angles to vectors in the direction of polarization.

Follows convention: Vector perpendicular to photon direction and closest to +y axis is angle 0 for polarization direction, unless photon direction is parallel to the y axis, in which case the vector closest to the +x axis is angle 0.

Parameters:

dir_arraynx4 np.array

each row is the homogeneous coordinates for a photon’s direction vector

anglesnp.array

1D array with the polarization angles