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  • Vol. 30, Iss. 13 — Jul. 1, 2005
  • pp: 1599–1601

Role of spatial coherence in polarization tomography

A. Aiello and J. P. Woerdman  »View Author Affiliations


Optics Letters, Vol. 30, Issue 13, pp. 1599-1601 (2005)
http://dx.doi.org/10.1364/OL.30.001599


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Abstract

We analyze an experimental setup in which a quasi-monochromatic spatially coherent beam of light is used to probe a paraxial optical scatterer. We discuss the effect of the spatial coherence of the probe beam on the Mueller matrix representing the scatterer. We show that, according to the degree of spatial coherence of the beam, the same scattering medium can be represented by different Mueller matrices. This result should serve as a warning for experimentalists.

© 2005 Optical Society of America

OCIS Codes
(030.1640) Coherence and statistical optics : Coherence
(260.5430) Physical optics : Polarization
(290.0290) Scattering : Scattering

Citation
A. Aiello and J. P. Woerdman, "Role of spatial coherence in polarization tomography," Opt. Lett. 30, 1599-1601 (2005)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-30-13-1599


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References

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  6. Hereafter, we denote as "scattering medium" any assembly of passive, linear, optical devices, including both deterministic and random media.
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  9. For the physical meaning of W(rA,rB,omega) and its relation with the 2×2 coherence matrix J used in elementary theory of partial polarization, see Ref. , p. 264.
  10. A. Aiello and J. P. Woerdman, "Linear algebra for Mueller calculus," arXiv.org e-print, archive, math-ph/0412061, December 17, 2004.
  11. The spectral density Stokes parameters were originally introduced by T. Carozzi, R. Karlsson, and J. Bergman, Phys. Rev. E 61, 2024 (2000). However, our definition is slightly different from theirs since we use the normalized Pauli matrices {sigma(alpha)} defined in Ref. [CrossRef]
  12. O. Korotkova and E. Wolf, Opt. Lett. 30, 198 (2005). The two-point Stokes parameters introduced in our Letter differ slightly from the ones defined by Korotkova and Wolf. The difference is due to a normalization factor and to a different definition of matrix W.
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