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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

  • Editor: Stephen A. Burns
  • Vol. 25, Iss. 10 — Oct. 1, 2008
  • pp: 2594–2599

Focal shift of focused truncated Lorentz–Gauss beam

Guoquan Zhou  »View Author Affiliations


JOSA A, Vol. 25, Issue 10, pp. 2594-2599 (2008)
http://dx.doi.org/10.1364/JOSAA.25.002594


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Abstract

Based on the Collins diffraction integral formula and the complex Gaussian expansion of the aperture function, an analytical expression for a Lorentz–Gauss beam focused by an optical system with a thin lens and a circular aperture has been derived. The focal shift of the focused truncated Lorentz–Gauss beam is investigated with numerical examples, and the dependence of the focal shift on the different parameters of the focused truncated Lorentz–Gauss beam is discussed in detail. This research is useful to the applications of highly divergent laser beams.

© 2008 Optical Society of America

OCIS Codes
(050.1940) Diffraction and gratings : Diffraction
(140.3430) Lasers and laser optics : Laser theory
(220.2560) Optical design and fabrication : Propagating methods
(350.5500) Other areas of optics : Propagation

ToC Category:
Diffraction

History
Original Manuscript: June 16, 2008
Revised Manuscript: August 8, 2008
Manuscript Accepted: August 23, 2008
Published: September 25, 2008

Citation
Guoquan Zhou, "Focal shift of focused truncated Lorentz-Gauss beam," J. Opt. Soc. Am. A 25, 2594-2599 (2008)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-25-10-2594

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