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X-ray ptychography using randomized zone plates

Morrison, GR; Zhang, F; Gianoncelli, A; Robinson, IK; (2018) X-ray ptychography using randomized zone plates. Optics Express , 26 (12) pp. 14915-14927. 10.1364/OE.26.014915. Green open access

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Abstract

We have developed a randomized grating condenser zone plate (GCZP) that provides a µm-scale probe for use in x-ray ptychography. This delivers a significantly better x-ray throughput than probes defined by pinhole apertures, while providing a clearly-defined level of phase diversity to the illumination on the sample, and helping to reduce the dynamic range of the detected signal by spreading the zero-order light over an extended area of the detector. The first use of this novel x-ray optical element has been demonstrated successfully for both amplitude and phase contrast imaging using soft x-rays on the TwinMic beamline at the Elettra synchrotron.

Type: Article
Title: X-ray ptychography using randomized zone plates
Open access status: An open access version is available from UCL Discovery
DOI: 10.1364/OE.26.014915
Publisher version: http://doi.org/10.1364/OE.26.014915
Language: English
Additional information: Copyright Journal © 2018. Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
UCL classification: UCL > Provost and Vice Provost Offices
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: http://discovery.ucl.ac.uk/id/eprint/10054007
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