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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. 6 — Jun. 1, 2000
  • pp: 1115–1123

Gaussian beams in hollow metal waveguides

Lee W. Casperson  »View Author Affiliations


JOSA A, Vol. 17, Issue 6, pp. 1115-1123 (2000)
http://dx.doi.org/10.1364/JOSAA.17.001115


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Abstract

Various families of Gaussian beams have been explored previously to represent the propagation of nearly plane electromagnetic waves in media having at most quadratic transverse variations of the index of refraction and the gain or loss in the vicinity of the beam. However, such beams cannot directly represent the wave solutions for propagation in planar or rectangular waveguides, and sinusoidal mode functions are more commonly used for such waveguides. On the other hand, it is also useful to consider the possibility of recurring Gaussian beams that have an approximately Gaussian transverse profile at certain distinct planes along the propagation path. It is shown here that under some conditions recurring Gaussian beams can describe wave propagation in hollow metal waveguides, and they can also lead to efficient coupling between the waveguide fields and free-space beams.

© 2000 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

Citation
Lee W. Casperson, "Gaussian beams in hollow metal waveguides," J. Opt. Soc. Am. A 17, 1115-1123 (2000)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-17-6-1115

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