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Optics Letters

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  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 17 — Sep. 1, 2014
  • pp: 5070–5073

Determining the topological charge of stochastic electromagnetic vortex beams with the degree of cross-polarization

Meilan Luo and Daomu Zhao  »View Author Affiliations


Optics Letters, Vol. 39, Issue 17, pp. 5070-5073 (2014)
http://dx.doi.org/10.1364/OL.39.005070


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Abstract

By analysis of the degree of cross-polarization of a stochastic electromagnetic vortex beam, we find that the number of bright ring dislocations is equal to the topological charge of the vortex beam. Based on this property, we suggest a method to access the measurement of the orbital angular momentum of vector vortex beams, which holds true for cases of high coherence or low coherence.

© 2014 Optical Society of America

OCIS Codes
(030.1640) Coherence and statistical optics : Coherence
(260.2110) Physical optics : Electromagnetic optics
(260.5430) Physical optics : Polarization
(350.5500) Other areas of optics : Propagation
(050.4865) Diffraction and gratings : Optical vortices

ToC Category:
Physical Optics

History
Original Manuscript: July 1, 2014
Manuscript Accepted: July 22, 2014
Published: August 20, 2014

Citation
Meilan Luo and Daomu Zhao, "Determining the topological charge of stochastic electromagnetic vortex beams with the degree of cross-polarization," Opt. Lett. 39, 5070-5073 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-17-5070


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