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Proceedings Paper

Intensity fluctuations and the degree of polarization in Gaussian random electromagnetic fields
Author(s): Tero Setala; K. Lindfors; Matti Kaivola; Jani Tervo; Ari T. Friberg
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Paper Abstract

For an electromagnetic beam described by Gaussian statistics the normalized intensity fluctuations are known to depend on the beam's degree of polarization. With general non-paraxial random electromagnetic waves, such as optical near fields, a complete characterization of the polarization state requires a 3 x 3 coherence matrix and a three-dimensional degree of polarization. We demonstrate that, under the assumption of Gaussian statistics, the normalized intensity fluctuations in the three-dimensional case are expressible in terms of the three-dimensional degree of polarization. Since such a general description can be employed even for beams with only a transverse electric field, several important physical results follow from comparison of the three-dimensional and usual two-dimensional formulations. The results are expected to be particularly important in intensity interferometry.

Paper Details

Date Published: 21 October 2004
PDF: 5 pages
Proc. SPIE 5622, 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, (21 October 2004); doi: 10.1117/12.591611
Show Author Affiliations
Tero Setala, Helsinki Univ. of Technology (Finland)
K. Lindfors, Helsinki Univ. of Technology (Finland)
Matti Kaivola, Helsinki Univ. of Technology (Finland)
Jani Tervo, LightTrans GmbH (Germany)
Ari T. Friberg, Royal Institute of Technology (Sweden)

Published in SPIE Proceedings Vol. 5622:
5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications
Aristides Marcano O.; Jose Luis Paz, Editor(s)

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