1. Imaging via Correlation of X-Ray Fluorescence Photons.
- Author
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Trost F, Ayyer K, Prasciolu M, Fleckenstein H, Barthelmess M, Yefanov O, Dresselhaus JL, Li C, Bajt S, Carnis J, Wollweber T, Mall A, Shen Z, Zhuang Y, Richter S, Karl S, Cardoch S, Patra KK, Möller J, Zozulya A, Shayduk R, Lu W, Brauße F, Friedrich B, Boesenberg U, Petrov I, Tomin S, Guetg M, Madsen A, Timneanu N, Caleman C, Röhlsberger R, von Zanthier J, and Chapman HN
- Abstract
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 femtosecond-duration 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.
- Published
- 2023
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