Abstract

The present paper may be viewed as built from comments concerning a recently published paper in Journal of Quantitative Spectroscopy and Radiative Transfer, and actually constitutes as well a rebuttal of some of the claims it contains. The issue considered concerns the computation of scattering properties of the interaction between an arbitrary electromagnetic shaped beam and a homogeneous sphere. Our discussion of the issue may be easily extended as well to more general cases, beyond the simplest case of a homogeneous spherical scatterer, up to the case of arbitrary shaped particles in the framework of T-matrix formulation. Finally, we take the opportunity of the present paper to review the use of the angular spectrum decomposition in light scattering.

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