Two-point Stokes parameters: interpretation and properties.
Whereas the classic Stokes parameters are measures of intensity, the recently introduced two-point Stokes parameters characterize spatial coherence. It is shown that in analogy to the Stokes parameters, the two-point parameters have a physical interpretation as sums and differences of (scalar) cross-spectral density functions of specific electric-field components. A measurement scheme and several physical consequences of the two-point parameters are discussed.
Tervo
Jani
J
Department of Physics and Mathematics, University of Joensuu, P.O. Box 111, FI-80101 Joensuu, Finland. jani.tervo@joensuu.fi
Setälä
Tero
T
Roueff
Antoine
A
Réfrégier
Philippe
P
Friberg
Ari T
AT