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Imaging via Correlation of X-Ray Fluorescence Photons
DESY, Ctr Free Electron Laser Sci CFEL, Notkestr 85, D-22607 Hamburg, Germany..
Max Planck Inst Struct & Dynam Matter, D-22607 Hamburg, Germany.;Univ Hamburg, Hamburg Ctr Ultrafast Imaging, Luruper Chaussee 149, D-22761 Hamburg, Germany..
DESY, Ctr Free Electron Laser Sci CFEL, Notkestr 85, D-22607 Hamburg, Germany..
DESY, Ctr Free Electron Laser Sci CFEL, Notkestr 85, D-22607 Hamburg, Germany..
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2023 (engelsk)Inngår i: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 130, nr 17, artikkel-id 173201Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

We demonstrate that x-ray fluorescence emission, which cannot maintain a stationary interference pattern, can be used to obtain images of structures by recording photon-photon correlations in the manner of the stellar intensity interferometry of Hanbury Brown and Twiss. This is achieved utilizing femtosecondduration pulses of a hard x-ray free-electron laser to generate the emission in exposures comparable to the coherence time of the fluorescence. Iterative phasing of the photon correlation map generated a model-free real-space image of the structure of the emitters. Since fluorescence can dominate coherent scattering, this may enable imaging uncrystallised macromolecules.

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American Physical Society, 2023. Vol. 130, nr 17, artikkel-id 173201
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Identifikatorer
URN: urn:nbn:se:uu:diva-503245DOI: 10.1103/PhysRevLett.130.173201ISI: 000979791600002PubMedID: 37172237OAI: oai:DiVA.org:uu-503245DiVA, id: diva2:1767685
Forskningsfinansiär
German Research Foundation (DFG), EXC 2056German Research Foundation (DFG), 390715994Swedish Research Council, 2018-00740Swedish Research Council, 2019-03935Tilgjengelig fra: 2023-06-14 Laget: 2023-06-14 Sist oppdatert: 2023-06-14bibliografisk kontrollert

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Cardoch, SebastianPatra Kumar, KajwalTimneanu, NicusorCaleman, CarlChapman, Henry

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