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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 33, Iss. 7 — Apr. 1, 2008
  • pp: 642–644

Can a light beam be considered to be the sum of a completely polarized and a completely unpolarized beam?

Emil Wolf  »View Author Affiliations


Optics Letters, Vol. 33, Issue 7, pp. 642-644 (2008)
http://dx.doi.org/10.1364/OL.33.000642


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Abstract

In a classic paper that may be regarded as the starting point of polarization optics, G. G. Stokes [Trans. Cambridge Philos. Soc. 9, 399 (1852)] presented a theorem according to which any light beam is equivalent to the sum of two light beams, one of which is completely polarized and the other completely unpolarized. We show that Stokes’ proof of this theorem is flawed. We present a condition for the theorem to be valid.

© 2008 Optical Society of America

OCIS Codes
(260.0260) Physical optics : Physical optics
(260.5430) Physical optics : Polarization

ToC Category:
Physical Optics

History
Original Manuscript: January 4, 2008
Manuscript Accepted: January 23, 2008
Published: March 18, 2008

Citation
Emil Wolf, "Can a light beam be considered to be the sum of a completely polarized and a completely unpolarized beam?," Opt. Lett. 33, 642-644 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-7-642


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References

  1. G. G. Stokes, Trans. Cambridge Philos. Soc. 9, 399-416 (1852), reprinted in W. Swindell, Polarized Light (Dowden, Hutchinson, P. Ross, 1975), pp. 124-141.
  2. E. Wolf, Phys. Lett. A 312, 263 (2003). [CrossRef]
  3. E. Wolf, Opt. Lett. 28, 1078 (2003). [CrossRef] [PubMed]
  4. H. Roychowdhury and E. Wolf, Opt. Commun. 226, 57 (2003). [CrossRef]
  5. E. Wolf, Introduction to the Theory of Coherence of Polarization of Light (Cambridge U. Press, 2007).
  6. J. Tervo, T. Setälä, and A. T. Friberg, J. Opt. Soc. Am. A 21, 2205 (2004). [CrossRef]
  7. M. Alonso and E. Wolf, “A new representation of the cross-spectral density matrix of a planar, stochastic source,” Opt. Commun. (to be published).
  8. Usual treatments involving the Stokes parameters are carried out in the space-time rather than in the space-frequency domain. The two approaches are equivalent. However, the space-frequency representation has considerable advantages in treatments of problems involving propagation, because the propagation laws in the space-frequency domain are appreciably simpler than those in the space-time domain.
  9. L. Mandel and E. Wolf, Optical Coherence and Quantum Optics (Cambridge U. Press, 1995).
  10. M. Lahiri and E. Wolf, “Cross-spectral density matrix of the far field generated by blackbody sources,” Opt. Commun. (to be published).

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