title: Influence of spatial coherence on scattering by a particle.
abstract: We analyze the effect of partial spatial coherence on the scattering of light by an arbitrary particle. We extend the definition of the extinction cross section to spatially partially coherent fields. We then discuss the effect of the partial coherence on the extinction scattering cross section by introducing the Wigner transform. It is shown that for rotationally invariant scatterers, the extinction cross section does not depend on the coherence of the incident field. The effect of partial coherence on the angular behavior of the scattered intensity is also discussed in the framework of the Wigner transform. The implications for practical applications are considered.
authors.affiliation: The Institute of Optics, University of Rochester, Rochester, New York 14627, USA. greffet@em2c.ecp.fr
authors.forename: Jean-Jacques
authors.initials: JJ
authors.lastname: Greffet
authors.forename: Manuel
authors.initials: M
authors.lastname: De La Cruz-Gutierrez
authors.forename: Philipp V
authors.initials: PV
authors.lastname: Ignatovich
authors.forename: Alexander
authors.initials: A
authors.lastname: Radunsky