Coherent X-ray beam expander based on a multilens interferometer

A coherent X-ray beam expander based on a multilens interferometer is proposed in this paper. The multilens interferometer allows efficient generation of a highly diverging coherent beam up to several milliradians in the hard X-ray energy range. The optical properties of the interferometer were expe...

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Published inOptics express Vol. 29; no. 22; pp. 35038 - 35053
Main Authors Zverev, D., Snigireva, I., Sorokovikov, M., Yunkin, V., Kuznetsov, S., Snigirev, A.
Format Journal Article
LanguageEnglish
Published 25.10.2021
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Summary:A coherent X-ray beam expander based on a multilens interferometer is proposed in this paper. The multilens interferometer allows efficient generation of a highly diverging coherent beam up to several milliradians in the hard X-ray energy range. The optical properties of the interferometer were experimentally demonstrated at the ESRF ID13 undulator beamline (Grenoble, France), using 12.4 keV X-rays. The beam expander allowed us to control the angular size and photon flux density of the formed beam and enabled operation in both coherent and incoherent modes. The experimental results were fully consistent with the theoretical concepts and appropriate computer simulations. Future design improvements and related applications are also discussed.
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ISSN:1094-4087
1094-4087
DOI:10.1364/OE.434656