Publication Date:
2018-04-16
Description:
Publication date: Available online 14 April 2018 Source: Ultramicroscopy Author(s): Priya Dwivedi, Sander Konijnenberg, Silvania Pereira, Paul Urbach Ptychography, a form of Coherent Diffractive Imaging, is used with short wavelengths (e.g. X-rays, electron beams) to achieve high-resolution image reconstructions. One of the limiting factors for the reconstruction quality is the accurate knowledge of the illumination probe positions. Recently, many advances have been made to relax the requirement for the probe positions accuracy. Here, we analyse and demonstrate a straightforward approach that can be used to correct the probe positions with sub-pixel accuracy. Simulations and experimental results with visible light are presented in this work.
Print ISSN:
0304-3991
Topics:
Electrical Engineering, Measurement and Control Technology
,
Natural Sciences in General
,
Physics
