Hannover 2020 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 13: Posters: Quantum Optics and Photonics I
Q 13.35: Poster
Montag, 9. März 2020, 16:30–18:30, Empore Lichthof
Incoherent Diffraction Imaging - Utilizing Intensity Interferometry for Imaging with Hard X-Rays — •Stefan Richter1,2, Fabian Trost3, Anton Classsen1,2, Kartik Ayyer2, Henry Chapman3,4,5, Ralf Röhlsberger5,6, and Joachim von Zanthier1,2 — 1Universität Erlangen-Nürnberg, Erlangen — 2Erlangen Graduate School in Advanced Optical Technologies (SAOT), Universität Erlangen-Nürnberg, Erlangen — 3Center for Free-Electron Laser Science, DESY, Hamburg — 4Universität Hamburg, Hamburg — 5The Hamburg Centre for Ultrafast Imaging, Hamburg — 6DESY, Hamburg
Intensity correlations were initially used in astronomy for determining the diameter or the separations of stars [1]. Recently, it was shown that this technique can also be employed in the x-ray domain to reveal the arrangement of atoms in crystals or molecules that scatter incoherent x-ray fluorescence photons [2]. Correlating incoherent fluorescence photons, a larger volume of the Fourier space is accessible and elements specific imaging is possible [2]. Here we present numerical simulations of this technique, including correlating photons in 3D Fourier space, rotation of microcrystals when jetted in a beam and normalization of the correlations. We also discuss the influence of different sources of noise.
[1] R. Hanbury Brown, J. Davis, L. R. Allen, Mon. Not. R. astr. Soc. 167, 121 (1974) [2] A. Classen, K. Ayyer, H. N. Chapman, R. Röhlsberger, J. von Zanthier, Phys. Rev. Lett. 119, 053401 (2017).