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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. 21, Iss. 9 — Sep. 1, 2004
  • pp: 1694–1702

Vortex array carried by a pseudo-nondiffracting beam

Zdeněk Bouchal  »View Author Affiliations


JOSA A, Vol. 21, Issue 9, pp. 1694-1702 (2004)
http://dx.doi.org/10.1364/JOSAA.21.001694


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Abstract

A method for generation of an array of optical vortices nested at off-axis positions in a pseudonondiffracting background beam is proposed. The free-space propagation of a single off-axis vortex is analyzed thoroughly. Particular attention is focused on evolution of the beam intensity profile, description of the trajectory of the original off-axis vortex, and nucleation of additional pairs of vortices. Conditions that provide propagation stability are also discussed. An experimental setup for generation of a pseudo-nondiffracting off-axis vortex beam and an array of off-axis vortices is proposed.

© 2004 Optical Society of America

OCIS Codes
(140.3300) Lasers and laser optics : Laser beam shaping

Citation
Zdeněk Bouchal, "Vortex array carried by a pseudo-nondiffracting beam," J. Opt. Soc. Am. A 21, 1694-1702 (2004)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-21-9-1694

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