Efficient concentration of high-energy x-rays for diffraction-limited imaging resolution

Newly available x-ray nanobeams in synchrotron radiation facilities open new research avenues in the nanosciences. However, a significant challenge is to efficiently concentrate, particularly for high-energy x-rays, a large photon flux into a very small focal spot. Here, we demonstrate for the first...

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Bibliographic Details
Published inOptica Vol. 4; no. 5; pp. 492 - 495
Main Authors Cesar da Silva, Julio, Pacureanu, Alexandra, Yang, Yang, Bohic, Sylvain, Morawe, Christian, Barrett, Raymond, Cloetens, Peter
Format Journal Article
LanguageEnglish
Published Optical Society of America - OSA Publishing 20.05.2017
Subjects
Optics
Physics
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Summary:Newly available x-ray nanobeams in synchrotron radiation facilities open new research avenues in the nanosciences. However, a significant challenge is to efficiently concentrate, particularly for high-energy x-rays, a large photon flux into a very small focal spot. Here, we demonstrate for the first time, to the best of our knowledge, a sub-13-nm (FWHM) diffraction-limited x-ray focus size with 6 billion photons per second formed using elliptically figured mirrors operating at 33.6 keV. This is the smallest and brightest focus spot in this high-energy range. We report the results of an x-ray ptychography experiment to characterize the wavefront at the focus position. This offers new opportunities in multidisciplinary fields for x-ray microscopy techniques in which the focal spot size limits the resolution. (C) 2017 Optical Society of America
ISSN:2334-2536
2334-2536
DOI:10.1364/OPTICA.4.000492