An improved ptychographical phase retrieval algorithm for diffractive imaging
2009; Elsevier BV; Volume: 109; Issue: 10 Linguagem: Inglês
10.1016/j.ultramic.2009.05.012
ISSN1879-2723
AutoresAndrew Maiden, J. M. Rodenburg,
Tópico(s)Astrophysical Phenomena and Observations
ResumoThe ptychographical iterative engine (or PIE) is a recently developed phase retrieval algorithm that employs a series of diffraction patterns recorded as a known illumination function is translated to a set of overlapping positions relative to a target sample. The technique has been demonstrated successfully at optical and X-ray wavelengths and has been shown to be robust to detector noise and to converge considerably faster than support-based phase retrieval methods. In this paper, the PIE is extended so that the requirement for an accurate model of the illumination function is removed.
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