qspec.simulate. Laser.get_kpol  (  k ,  electric ,  q_axis = 2  )[source]

Parameters:

kint

The multipole order $k \geq 1$.

electricbool

Whether the electric (True) or the magnetic (False) field component is returned.

q_axisarray_like

The quantization axis. Must be an integer in {0, 1, 2} or a 3d-vector. The default is q_axis = 2 (z-axis).

Returns:

outNone

The rank k electric or magnetic irreducible tensor polarization in the helicity basis for the given quantization axis.