title: Transport of intensity and spectrum for partially coherent fields.
abstract: Transport-of-intensity and transport-of-spectrum equations are derived using the coherent mode decomposition for paraxial fields having an arbitrary state of coherence. We give a simple example that demonstrates the difference between a partially coherent and a fully coherent transport of intensity or spectrum. The results presented here may be used to estimate the intensity response in a variety of phase-contrast imaging modalities and may form the basis for improved phase-retrieval techniques.
authors.affiliation: Department of Electrical and Computer Engineering, Medical Imaging Research Center, Illinois Institute of Technology, Chicago, Illinois 60616, USA.
authors.forename: Adam M
authors.initials: AM
authors.lastname: Zysk
authors.forename: Robert W
authors.initials: RW
authors.lastname: Schoonover
authors.forename: P Scott
authors.initials: PS
authors.lastname: Carney
authors.forename: Mark A
authors.initials: MA
authors.lastname: Anastasio
mesh_terms: D007091:Image Processing, Computer-Assisted / Q000379:methods*; D013057:Spectrum Analysis