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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 30, Iss. 2 — Jan. 15, 2005
  • pp: 198–200

Generalized Stokes parameters of random electromagnetic beams

Olga Korotkova and Emil Wolf  »View Author Affiliations


Optics Letters, Vol. 30, Issue 2, pp. 198-200 (2005)
http://dx.doi.org/10.1364/OL.30.000198


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Abstract

A generalization of the Stokes parameters of a random electromagnetic beam is introduced. Unlike the usual Stokes parameters, which depend on one spatial variable, the generalized Stokes parameters, depend on two spatial variables. They obey precise laws of propagation, both in free space and in any linear medium, whether deterministic or random. With the help of the generalized Stokes parameters, the changes in the ordinary Stokes parameters upon propagation can be determined. Numerical examples of such changes are presented. The generalized Stokes parameters contain information not only about the polarization properties of the beam but also about its coherence properties. We illustrate this fact by expressing the degree of coherence of the electromagnetic beam in terms of one of the generalized Stokes parameters.

© 2005 Optical Society of America

OCIS Codes
(030.1640) Coherence and statistical optics : Coherence
(260.0260) Physical optics : Physical optics
(260.5430) Physical optics : Polarization
(350.5500) Other areas of optics : Propagation

Citation
Olga Korotkova and Emil Wolf, "Generalized Stokes parameters of random electromagnetic beams," Opt. Lett. 30, 198-200 (2005)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-30-2-198

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