Scattering of evanescent wave by two cylinders near a flat boundary
  Two-dimensional problem of evanescent wave scattering by dielectric or metallic cylinders near the interface between two dielectric media is solved numerically by boundary integral equations method. A special Green function was proposed to avoid the infinite integration. A pattern with a circular and a prolate elliptic cylinders, respectively, is suggested to simulate the sample and the probe in near-field optical microscopy. The energy flux in the midplane of the probe-cylinder is calculated as a function of its position. 
O.V. Belai, L.L. Frumin, S.V. Perminov, and D.A. Shapiro
physics.optics