Geometrical–numerical approach to diffraction phenomena
Geometrical–numerical approach to diffraction phenomena is a scholarly work, published in 2001 in ''Optics Letters''. The main subjects of the publication include physics, plane wave, Kirchhoff's diffraction formula, geometrical optics, RADIUS, physical optics, pinhole, anti-reflective coating, optics, ptychography, Huygens–Fresnel principle, diffraction, Fresnel diffraction, Aperture, finite-difference time-domain method, and High frequency approximation. The calculation of diffracted fields is considered by means of a geometrical analysis of the incoming wave into semiperiodic zones in the aperture plane, followed by a numerical process for addition of the contributions corresponding to the semiperiodic zones.