Manifestation of a hidden dislocation wave originated in a plane-wave diffraction on a half-plane screen

摘要

Abstract: It was shown that the well-known Sommerfeld's solution of the problem of a plane wave diffraction on a perfectly conductive half-plane screen can be expressed as a superposition of two waves, one being a plane wave with the amplitude twice smaller than the incident wave amplitude, and the other infinite-aperture wave with infinitely- extended edge dislocation. On the contrary with traditional components of the diffraction field, these wave can exist and propagate in free space separately with self-similar features.!25