in the conversion between stokes and electric field, there should be a multiplication with a constant (permitivity of free space).

• the missing scaling results in wrong amplitudes for some light sources.

• also if the scaling is added, then the calculation of stokes in the light sources probably has to be adjusted.

• maybe the light sources can use electric field instead of stokes right away. then a conversion from stokes to electric field would happen when parsing RML (stokes) and constructing the design source object