Universality of electromagnetic-field correlations within homogeneous and isotropic sources

T. Setälä, K. Blomstedt, M. Kaivola, and A. T. Friberg
Phys. Rev. E 67, 026613 – Published 27 February 2003
PDFExport Citation

Abstract

We investigate the structure of second-order correlations in electromagnetic fields produced by statistically stationary, homogeneous, and isotropic current distributions. We show that the coherence properties of such fields within a low-loss or nondissipative medium do not depend on the source characteristics, but are solely determined by the propagation properties, and that the degree of coherence of the field is given by the sinc law. Our analysis reproduces the known results for blackbody fields, but it applies to a wider class of sources, not necessarily in thermal equilibrium. We discuss the physics behind the universal behavior of the correlations by comparing the results with those obtained by an electromagnetic plane-wave model.

  • Received 27 October 2002

DOI:https://doi.org/10.1103/PhysRevE.67.026613

©2003 American Physical Society

Authors & Affiliations

T. Setälä*, K. Blomstedt, and M. Kaivola

  • Department of Engineering Physics and Mathematics, Helsinki University of Technology, P.O. Box 2200, FIN-02015 HUT, Finland

A. T. Friberg

  • Department of Microelectronics and Information Technology, Royal Institute of Technology, SE-164 40 Kista, Sweden

  • *FAX: +358 9 451 3155. Email address: tsetala@focus.hut.fi

References (Subscription Required)

Click to Expand
Issue

Vol. 67, Iss. 2 — February 2003

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review E

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×