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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 36, Iss. 12 — Jun. 15, 2011
  • pp: 2227–2229

Framework for three-dimensional coherent diffraction imaging by focused beam x-ray Bragg ptychography

Stephan O. Hruszkewycz, Martin V. Holt, Ash Tripathi, Jörg Maser, and Paul H. Fuoss  »View Author Affiliations

Optics Letters, Vol. 36, Issue 12, pp. 2227-2229 (2011)

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We present the framework for convergent beam Bragg ptychography, and, using simulations, we demonstrate that nanocrystals can be ptychographically reconstructed from highly convergent x-ray Bragg diffraction. The ptychographic iterative engine is extended to three dimensions and shown to successfully reconstruct a simulated nanocrystal using overlapping raster scans with a defocused curved beam, the diameter of which matches the crystal size. This object reconstruction strategy can serve as the basis for coherent diffraction imaging experiments at coherent scanning nanoprobe x-ray sources.

© 2011 Optical Society of America

OCIS Codes
(100.5070) Image processing : Phase retrieval
(110.1650) Imaging systems : Coherence imaging
(110.6880) Imaging systems : Three-dimensional image acquisition
(110.7440) Imaging systems : X-ray imaging

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: March 21, 2011
Revised Manuscript: May 3, 2011
Manuscript Accepted: May 3, 2011
Published: June 7, 2011

Stephan O. Hruszkewycz, Martin V. Holt, Ash Tripathi, Jörg Maser, and Paul H. Fuoss, "Framework for three-dimensional coherent diffraction imaging by focused beam x-ray Bragg ptychography," Opt. Lett. 36, 2227-2229 (2011)

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