Simultaneous phase and amplitude extraction from a single defocused image of a homogeneous object |
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Authors: | D Paganin† S C Mayo T E Gureyev P R Miller & S W Wilkins |
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Affiliation: | Commonwealth Scientific and Industrial Research Organization, Manufacturing Science and Technology, PB 33 Clayton Sth, 3169 Victoria, Australia;School of Physics, The University of Melbourne, 3010 Victoria, Australia |
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Abstract: | We demonstrate simultaneous phase and amplitude extraction from a single defocused image of a homogeneous object. Subject to the assumptions explicitly stated in the derivation, the algorithm solves the twin‐image problem of in‐line holography and is capable of analysing data obtained using X‐ray microscopy, electron microscopy, neutron microscopy or visible‐light microscopy, especially as they relate to defocus and point projection methods. Our simple, robust, non‐iterative and computationally efficient method is applied to data obtained using an X‐ray phase contrast ultramicroscope. |
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Keywords: | Holography phase contrast phase retrieval point-projection microscopy X-ray microscopy |
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