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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 36, Iss. 11 — Jun. 1, 2011
  • pp: 2017–2019

Measuring the topological charge of optical vortices with an axicon

Yujing Han and Guanghui Zhao  »View Author Affiliations


Optics Letters, Vol. 36, Issue 11, pp. 2017-2019 (2011)
http://dx.doi.org/10.1364/OL.36.002017


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Abstract

We analyzed the spatial spectrum of the diffraction intensity pattern of an ideal Bessel beam and found an implicit rule that the number of the bright rings in the spatial spectrum is equal to the topological charge of the Bessel beam. The radius of the bright and dark rings has some relation with the topological charge and can be determined accurately. It provides us with a new way for measuring the topological charge of an optical vortex through its diffraction intensity pattern after an axicon. The results of simulation coincide with the theory.

© 2011 Optical Society of America

OCIS Codes
(080.4298) Geometric optics : Nonimaging optics
(050.4865) Diffraction and gratings : Optical vortices
(270.5585) Quantum optics : Quantum information and processing
(260.6042) Physical optics : Singular optics

ToC Category:
Diffraction and Gratings

History
Original Manuscript: March 23, 2011
Revised Manuscript: April 21, 2011
Manuscript Accepted: April 21, 2011
Published: May 26, 2011

Citation
Yujing Han and Guanghui Zhao, "Measuring the topological charge of optical vortices with an axicon," Opt. Lett. 36, 2017-2019 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-11-2017

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