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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. 18, Iss. 4 — Apr. 1, 2001
  • pp: 801–806

Diffraction of an electromagnetic beam by an aperture in a conducting screen

W. B. Dou and Edward K. N. Yung  »View Author Affiliations


JOSA A, Vol. 18, Issue 4, pp. 801-806 (2001)
http://dx.doi.org/10.1364/JOSAA.18.000801


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Abstract

An electromagnetic beam that is not the solution to the paraxial wave equation but is the solution to Maxwell’s equation is simulated directly by the finite-difference time-domain method. Electrical and magnetic field components of the beam are presented graphically. Then the diffraction of the electromagnetic beam pulse by an aperture in a conducting screen is analyzed. The fraction of the beam power through the aperture is defined and calculated. The fields in the time domain near the aperture, which show the diffraction by the aperture, are presented graphically.

© 2001 Optical Society of America

OCIS Codes
(050.1220) Diffraction and gratings : Apertures
(050.1940) Diffraction and gratings : Diffraction
(350.4010) Other areas of optics : Microwaves

History
Original Manuscript: June 7, 2000
Revised Manuscript: September 22, 2000
Manuscript Accepted: October 6, 2000
Published: April 1, 2001

Citation
W. B. Dou and Edward K. N. Yung, "Diffraction of an electromagnetic beam by an aperture in a conducting screen," J. Opt. Soc. Am. A 18, 801-806 (2001)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-18-4-801


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