Universality of electromagnetic field correlations within homogeneous and isotropic sources

Loading...
Thumbnail Image
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal
View/Open full text file from the Research portal
Date
2003-02-27
Major/Subject
Mcode
Degree programme
Language
en
Pages
9
1-9
Series
PHYSICAL REVIEW E, Volume 67, issue 2
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.
Description
Keywords
optical coherence theory
Other note
Citation
Setälä , T , Blomstedt , K , Kaivola , M & Friberg , A 2003 , ' Universality of electromagnetic field correlations within homogeneous and isotropic sources ' , Physical Review E , vol. 67 , no. 2 , 026613 , pp. 1-9 . https://doi.org/10.1103/PhysRevE.67.026613