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Proceedings Paper

Partial coherence and polarization in electromagnetic interference
Author(s): Tero Setälä; Jani Tervo; Ari T. Friberg
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Paper Abstract

While the theories of the optical coherence of scalar fields and the polarization of beam fields are well established, a general theory for the coherence and polarization of true electromagnetic fields appearsmore subtle. With random vector fields coherence may reside among any or all of the electric-field components, leading to a modulation of the optical intensity or the polarization state, or both, on two-beam interference. We discuss the recent formulations of both the polarization and the coherence, and we show that the electromagnetic degree of coherence is characterized by the modulation of all the four Stokes parameters (representing intensity and polarization state) in a two-pinhole Young's setup. This also leads to a new experimental interpretation for the degree polarization of a random electromagnetic beam. Certain important results pertaining to electromagnetic coherence, which are fully analogous to their scalar counterparts, are emphasized.

Paper Details

Date Published: 2 November 2011
PDF: 7 pages
Proc. SPIE 8011, 22nd Congress of the International Commission for Optics: Light for the Development of the World, 801166 (2 November 2011); doi: 10.1117/12.902482
Show Author Affiliations
Tero Setälä, Aalto Univ. (Finland)
Jani Tervo, Univ. of Eastern Finland (Finland)
Ari T. Friberg, Aalto Univ. (Finland)
Univ. of Eastern Finland (Finland)
Royal Institute of Technology (Sweden)

Published in SPIE Proceedings Vol. 8011:
22nd Congress of the International Commission for Optics: Light for the Development of the World
Ramón Rodríguez-Vera; Ramón Rodríguez-Vera; Ramón Rodríguez-Vera; Rufino Díaz-Uribe; Rufino Díaz-Uribe; Rufino Díaz-Uribe, Editor(s)

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