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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry Van Driel
  • Vol. 26, Iss. 11 — Nov. 1, 2009
  • pp: 2044–2049

Exact nonparaxial propagation of a hollow Gaussian beam

Dongmei Deng and Qi Guo  »View Author Affiliations


JOSA B, Vol. 26, Issue 11, pp. 2044-2049 (2009)
http://dx.doi.org/10.1364/JOSAB.26.002044


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Abstract

A group of virtual sources that generate a hollow Gaussian wave are determined on the basis of the superposition of beams. A closed-form expression is derived for the hollow Gaussian wave that in the appropriate limit yields the paraxial hollow Gaussian beam (HGB). From the perturbative series representation of a complex-source-point spherical wave, an infinite series nonparaxial correction expression for a HGB is derived. The infinite series expression of a HGB can provide accuracy up to any order of diffraction angle. The radiation intensity of the hollow Gaussian wave is ascertained, and the radiation intensity pattern is characterized. The total time-averaged power is evaluated. The characteristics of the quality of the paraxial beam approximation to the full hollow Gaussian wave are discussed.

© 2009 Optical Society of America

OCIS Codes
(140.3300) Lasers and laser optics : Laser beam shaping
(260.1960) Physical optics : Diffraction theory
(260.2110) Physical optics : Electromagnetic optics
(350.5500) Other areas of optics : Propagation

ToC Category:
Physical Optics

History
Original Manuscript: July 20, 2009
Manuscript Accepted: September 11, 2009
Published: October 9, 2009

Citation
Dongmei Deng and Qi Guo, "Exact nonparaxial propagation of a hollow Gaussian beam," J. Opt. Soc. Am. B 26, 2044-2049 (2009)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-26-11-2044

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