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Phys. Rev. A 80, 063823 (2009) [5 pages]

Ptychographic Fresnel coherent diffractive imaging

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D. J. Vine1,*, G. J. Williams1, B. Abbey1,2, M. A. Pfeifer3, J. N. Clark3, M. D. de Jonge4, I. McNulty5, A. G. Peele3, and K. A. Nugent1
1School of Physics, The University of Melbourne, Parkville, Victoria 3010, Australia
2Department of Engineering and Science, University of Oxford, Oxford OX1 2JD, United Kingdom
3Department of Physics, La Trobe University, Bundoora, Victoria 3086, Australia
4Australian Synchrotron, Clayton, Victoria 3168, Australia
5Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 6043, USA

Received 4 September 2009; published 8 December 2009

This paper reports improved reconstruction of complex wave fields from extended objects. The combination of ptychography with Fresnel diffractive imaging results in better reconstructions with fewer iterations required to convergence than either method considered separately. The method is applied to retrieve the projected thickness of a gold microstructure and comparative results using ptychography and Fresnel diffractive imaging are presented.

© 2009 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.80.063823
DOI:
10.1103/PhysRevA.80.063823
PACS:
42.30.Rx, 42.30.Wb

*dvine@unimelb.edu.au

 
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