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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 17, Iss. 12 — Dec. 1, 2000
  • pp: 2199–2207

Structure of an edge-dislocation wave originating in plane-wave diffraction by a half-plane

A. I. Khizhnyak, S. P. Anokhov, R. A. Lymarenko, M. S. Soskin, and M. V. Vasnetsov  »View Author Affiliations


JOSA A, Vol. 17, Issue 12, pp. 2199-2207 (2000)
http://dx.doi.org/10.1364/JOSAA.17.002199


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Abstract

A new treatment of the well-known Sommerfeld solution of the problem of plane-wave diffraction from a perfectly conducting half-plane is reported. We show, in both theory and experiment, that the diffraction field (E-polarization) can be represented as a superposition of real physically existing waves, in contrast to geometrical and boundary waves postulated in Sommerfeld’s representation. Our representation includes two pairs of wave components: one pair propagates along the direction of the incident wave, and the other in a mirror-reflected direction. Each wave pair consists of a plane-wave component with an amplitude half that of the incident wave and a nearly plane-wave component with an infinitely extended edge dislocation. On the basis of the proposed interpretation, all features of the half-plane diffraction are explained.

© 2000 Optical Society of America

OCIS Codes
(050.1960) Diffraction and gratings : Diffraction theory

History
Original Manuscript: October 28, 1999
Revised Manuscript: July 17, 2000
Manuscript Accepted: July 19, 2000
Published: December 1, 2000

Citation
A. I. Khizhnyak, S. P. Anokhov, R. A. Lymarenko, M. S. Soskin, and M. V. Vasnetsov, "Structure of an edge-dislocation wave originating in plane-wave diffraction by a half-plane," J. Opt. Soc. Am. A 17, 2199-2207 (2000)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-17-12-2199

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