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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 22 — Nov. 15, 2013
  • pp: 4727–4730

Cylindrical quasi-Gaussian beams

F. G. Mitri  »View Author Affiliations


Optics Letters, Vol. 38, Issue 22, pp. 4727-4730 (2013)
http://dx.doi.org/10.1364/OL.38.004727


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Abstract

Making use of the complex-source-point method in cylindrical coordinates, an exact solution representing a cylindrical quasi-Gaussian beam of arbitrary waist w 0 satisfying both the Helmholtz and Maxwell’s equations is introduced. The Cartesian components of the electromagnetic field are derived stemming from different polarizations of the magnetic and electric vector potentials based on Maxwell’s vectorial equations and Lorenz’s gauge condition, without any approximations. Computations illustrate the theory for tightly focused and quasi-collimated cylindrical beams. The results are particularly useful in beam-forming design using high-aperture or collimated cylindrical laser beams in imaging microscopy, particle manipulation, optical tweezers, and the study of scattering, radiation forces, and torque on cylindrical structures.

© 2013 Optical Society of America

OCIS Codes
(260.1960) Physical optics : Diffraction theory
(260.2110) Physical optics : Electromagnetic optics

ToC Category:
Physical Optics

History
Original Manuscript: September 13, 2013
Manuscript Accepted: October 8, 2013
Published: November 12, 2013

Citation
F. G. Mitri, "Cylindrical quasi-Gaussian beams," Opt. Lett. 38, 4727-4730 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-22-4727

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