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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 41, Iss. 30 — Oct. 20, 2002
  • pp: 6410–6415

Recurring beams in hollow metal waveguides: paraxial approximation

Lee W. Casperson  »View Author Affiliations


Applied Optics, Vol. 41, Issue 30, pp. 6410-6415 (2002)
http://dx.doi.org/10.1364/AO.41.006410


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Abstract

For optical and near-optical applications in electromagnetics, the directed propagation of waves in free space and in lenslike media is often in the Cartesian form of Gaussian or more general Hermite-sinusoidal-Gaussian beams. It has been shown that recurring (rather than continuing) forms of such beams are possible in the paraxial approximation for certain hollow metal waveguides, in which multiple reflections from the waveguide walls may occur. Limitations on this recurrence behavior implicit in use of the paraxial approximation are considered here, and estimates are obtained for the maximum propagation distance before the onset of significant distortion of the recurring beams.

© 2002 Optical Society of America

OCIS Codes
(230.0230) Optical devices : Optical devices
(230.7370) Optical devices : Waveguides
(230.7390) Optical devices : Waveguides, planar
(350.5500) Other areas of optics : Propagation

History
Original Manuscript: February 5, 2002
Revised Manuscript: July 2, 2002
Published: October 20, 2002

Citation
Lee W. Casperson, "Recurring beams in hollow metal waveguides: paraxial approximation," Appl. Opt. 41, 6410-6415 (2002)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-41-30-6410

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