Share Email Print

Proceedings Paper

Advances in ptychographical coherent diffractive imaging
Author(s): Andreas Menzel; Pierre Thibault; Martin Dierolf; Cameron M. Kewish; Oliver Bunk; Christian David; Wolfram Leitenberger; Franz Pfeiffer
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Extracting quantitative image information from coherent diffraction measurements remains challenging due to problems such as slow convergence of iterative phase retrieval algorithms, questionable uniqueness of the resulting images, and common requirements of compactness of the specimens. These difficulties are overcome by combining iterative phase retrieval with ptychography, i.e., the use of multiple diffraction measurements probing several overlapping regions of the specimen. While promising results of ptychographical coherent diffractive imaging have been achieved the technique has been limited by requiring precise knowledge of the illumination. We present advances of the reconstruction algorithm, which allow unsupervised deconvolution of the illuminating probe and the complex-valued optical transmission function of the specimen. We have performed measurements using both visible light and x-rays, demonstrating sub-50nm resolution.

Paper Details

Date Published: 5 September 2008
PDF: 8 pages
Proc. SPIE 7076, Image Reconstruction from Incomplete Data V, 707609 (5 September 2008); doi: 10.1117/12.794186
Show Author Affiliations
Andreas Menzel, Paul Scherrer Institut (Switzerland)
Pierre Thibault, Paul Scherrer Institut (Switzerland)
Martin Dierolf, Paul Scherrer Institut (Switzerland)
Ecole Polytechnique Fédérale de Lausanne (Switzerland)
Cameron M. Kewish, Paul Scherrer Institut (Switzerland)
Oliver Bunk, Paul Scherrer Institut (Switzerland)
Christian David, Paul Scherrer Institut (Switzerland)
Wolfram Leitenberger, Univ. Potsdam (Germany)
Franz Pfeiffer, Paul Scherrer Institut (Switzerland)
Ecole Polytechnique Fédérale de Lausanne (Switzerland)

Published in SPIE Proceedings Vol. 7076:
Image Reconstruction from Incomplete Data V
Philip J. Bones; Michael A. Fiddy; Rick P. Millane, Editor(s)

© SPIE. Terms of Use
Back to Top