Dipolar unit size in coupled-dipole calculations of the scattering matrix elements.

The coupled-dipole method is widely used to calculate the light-scattering matrix S from arbitrary particles. An important parameter in the model is the size of the dipolar subunits. Usually a size of ~1/10 to ~1/20 of the wavelength of the incident light is sufficient for accurate calculations. However, it was noted that accurate S(34) calculations require… (More)