Calculation of the near fields for the scattering of electromagnetic waves by multiple infinite cylinders at perpendicular incidence

The near field solution for the scattering of a plane monochromatic electromagnetic wave by an ensemble of parallel infinite dielectric cylinders at perpendicular incidence is presented in this paper. The solution is given for the calculation of the electric and magnetic near fields and the Poynting vector. A MATLAB program has been developed to solve the near field formulas which is introduced and validated. The near to far field transition as well as formation and transport of photonic nanojets have been calculated for multiple cylinder scattering.

► A near field solution for the scattering of an electromagnetic wave by an ensemble of cylinders is presented. ► Comparison results between a MATLAB implementation of the near field solution and FDTD calculations are shown. ► The near to far field transition of the scattered field is examined using the near field solution. ► Formation and transport of photonic nanojets are investigated.