Interference effect of the partially coherent wave fields from electric and magnetic sources

We investigate the interference in the radiation from the polarization and the magnetization sources by analyzing their cross-spectral densities. This interference can have a strong directionality in some examples and can be seen clearly in the asymmetric angular distribution of the power spectrum even for the weak magnetization compared to the polarization in the far zone. We also found the spectral shift in the radiation spectrum compared to the source spectrum.