  Light scattering is one of the most important elementary processes in
near-field optics. We build up the Born series for scattering by dielectric
bodies with step boundaries. The Green function for a 2-dimensional homogeneous
dielectric cylinder is obtained. As an example, the formulas are derived for
scattered field of two parallel cylinders. The polar diagram is shown to agree
with numerical calculation by the known methods of discrete dipoles and
boundary elements.
