Transport of intensity and spectrum for partially coherent fields.
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.
Zysk
Adam M
AM
Department of Electrical and Computer Engineering, Medical Imaging Research Center, Illinois Institute of Technology, Chicago, Illinois 60616, USA.
Schoonover
Robert W
RW
Carney
P Scott
PS
Anastasio
Mark A
MA
D007091:Image Processing, Computer-Assisted / Q000379:methods*; D013057:Spectrum Analysis