Zhang, F;
Peterson, I;
Vila-Comamala, J;
Diaz, A;
Berenguer, F;
Bean, R;
Chen, B;
... Rodenburg, JM; + view all
(2013)
Translation position determination in ptychographic coherent diffraction imaging.
Optics Express
, 21
(11)
13592 -13606.
10.1364/OE.21.013592.
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Abstract
Accurate knowledge of translation positions is essential in ptychography to achieve a good image quality and the diffraction limited resolution. We propose a method to retrieve and correct position errors during the image reconstruction iterations. Sub-pixel position accuracy after refinement is shown to be achievable within several tens of iterations. Simulation and experimental results for both optical and X-ray wavelengths are given. The method improves both the quality of the retrieved object image and relaxes the position accuracy requirement while acquiring the diffraction patterns.
| Type: | Article |
|---|---|
| Title: | Translation position determination in ptychographic coherent diffraction imaging |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1364/OE.21.013592 |
| Publisher version: | http://dx.doi.org/10.1364/OE.21.013592 |
| Language: | English |
| Additional information: | Copyright © 2013 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1396782 |
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