Journal
OPTICS EXPRESS
Volume 18, Issue 23, Pages 23727-23739Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.18.023727
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Funding
- Australian Research Council through the Centre of Excellence for Coherent X-ray Science
- APDI fellowship
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Certain phase retrieval methods use knowledge about the free space propagation of a wave to phase a paraxial beam passing through one or more measurement planes. This approach has been widely applied and has been shown to quantitatively retrieve the refractive index profile of a sample. The quality of the phase retrieval will depend on a range of factors including sample feature size, propagation distance, measurement plane separation, wavelength and noise. Here we describe an optimisation study for two-plane phase retrieval using a laboratory-based X-ray source that considers all of these factors. We discuss our results in the context of a three-dimensional reconstruction of a sample refractive index profile. (C) 2010 Optical Society of America
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