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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 53, Iss. 10 — Apr. 1, 2014
  • pp: B27–B37

Transverse energy circulation and the edge diffraction of an optical vortex beam

Aleksandr Ya. Bekshaev, Kadhim A. Mohammed, and Ivan A. Kurka  »View Author Affiliations


Applied Optics, Vol. 53, Issue 10, pp. B27-B37 (2014)
http://dx.doi.org/10.1364/AO.53.000B27


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Abstract

Edge diffraction of a circular Laguerre–Gaussian beam represents an example of the optical vortex symmetry breakdown in which the hidden “vortex” energy circulation is partially transformed into the visible “asymmetry” form. The diffracted beam evolution is studied in terms of the irradiance moments and the moment-based parameters. In spite of the limited applicability of the moment-based formalism, we show that the “vortex” and “asymmetry” parts of the orbital angular momentum can still be reasonably defined for the hard-edge diffracted beams and retain their physical role of quantifying the corresponding forms of the transverse energy circulation.

© 2014 Optical Society of America

OCIS Codes
(260.0260) Physical optics : Physical optics
(260.2160) Physical optics : Energy transfer
(140.3295) Lasers and laser optics : Laser beam characterization
(050.4865) Diffraction and gratings : Optical vortices
(050.5082) Diffraction and gratings : Phase space in wave options
(260.6042) Physical optics : Singular optics

History
Original Manuscript: November 14, 2013
Revised Manuscript: December 12, 2013
Manuscript Accepted: December 12, 2013
Published: February 3, 2014

Citation
Aleksandr Ya. Bekshaev, Kadhim A. Mohammed, and Ivan A. Kurka, "Transverse energy circulation and the edge diffraction of an optical vortex beam," Appl. Opt. 53, B27-B37 (2014)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-53-10-B27

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