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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. 16, Iss. 6 — Jun. 1, 1999
  • pp: 1381–1386

Electromagnetic Gaussian beams beyond the paraxial approximation

C. J. R. Sheppard and S. Saghafi  »View Author Affiliations


JOSA A, Vol. 16, Issue 6, pp. 1381-1386 (1999)
http://dx.doi.org/10.1364/JOSAA.16.001381


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Abstract

The lowest-order Gaussian beam mode is considered in a high-aperture theory based on a new variation of the complex source point model. To avoid singularities, combinations of sources and sinks are assumed. The resultant beam is a rigorous solution of Maxwell’s equations for all space that reduces to the conventional Gaussian beam in the paraxial limit and that is physically realizable. The field in the region of the waist and far from the waist is explored. It is demonstrated that direct rigorous evaluation of the field is feasible.

© 1999 Optical Society of America

OCIS Codes
(050.1940) Diffraction and gratings : Diffraction
(140.3410) Lasers and laser optics : Laser resonators

History
Original Manuscript: July 31, 1998
Revised Manuscript: November 24, 1998
Manuscript Accepted: December 2, 1998
Published: June 1, 1999

Citation
C. J. R. Sheppard and S. Saghafi, "Electromagnetic Gaussian beams beyond the paraxial approximation," J. Opt. Soc. Am. A 16, 1381-1386 (1999)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-16-6-1381


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References

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