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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. 10 — Oct. 1, 2000
  • pp: 1846–1856

Exterior caustics produced in scattering of a diagonally incident plane wave by a circular cylinder: semiclassical scattering theory analysis

James A. Lock, Charles L. Adler, and Edward A. Hovenac  »View Author Affiliations


JOSA A, Vol. 17, Issue 10, pp. 1846-1856 (2000)
http://dx.doi.org/10.1364/JOSAA.17.001846


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Abstract

We use the semiclassical limit of electromagnetic wave scattering theory to determine the properties of the exterior caustics of a diagonally incident plane wave scattered by an infinitely long homogeneous dielectric circular cylinder in both the near zone and the far zone. The transmission caustic has an exterior/interior cusp transition as the tilt angle of the incident beam is increased, and each of the rainbow caustics has a far-zone rainbow/exterior cusp transition and an exterior/interior cusp transition as the incident beam tilt angle is increased. We experimentally observe and analyze both transitions of the first-order rainbow. We also compare the predictions of the semiclassical approximation with those of ray theory and exact electromagnetic wave scattering theory.

© 2000 Optical Society of America

OCIS Codes
(080.1510) Geometric optics : Propagation methods
(290.4020) Scattering : Mie theory

History
Original Manuscript: October 22, 1999
Revised Manuscript: May 15, 2000
Manuscript Accepted: May 15, 2000
Published: October 1, 2000

Citation
James A. Lock, Charles L. Adler, and Edward A. Hovenac, "Exterior caustics produced in scattering of a diagonally incident plane wave by a circular cylinder: semiclassical scattering theory analysis," J. Opt. Soc. Am. A 17, 1846-1856 (2000)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-17-10-1846


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References

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