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A: Fachverband Atomphysik

A 25: Poster Session I

A 25.40: Poster

Dienstag, 6. März 2018, 16:15–18:15, Redoutensaal

X-ray and XUV Fourier holography of free-flying nanoparticles — •A Ulmer¹, J Bielecki², L Flückiger³, A Al Haddad⁴, F Benzi², J Correa⁵, T Ekeberg⁵, B Erk⁵, L Hecht¹, A Heilrath¹, M Hantke², O Kulyk⁶, B Langbehn¹, D Larsson², I Lundholm², T Osipov⁷, C Passow⁵, D Rompotis⁵, D Rupp¹, J Sellberg⁸, G van der Schot², P Walter⁷, L Young⁴, F Zimmermann¹, F Maia², J Hajdu², T Möller¹, C Bostedt⁴, and T Gorkhover^1,7,9 — ¹TU Berlin — ²Uppsala Univ. — ³La Trobe Univ. — ⁴Argonne Nat. Lab. — ⁵Desy — ⁶ELI Beamlines — ⁷SLAC — ⁸KTH Stockholm — ⁹Stanford

The advance of XUV/X-ray Free Electron Lasers (FEL) enable unprecedented insights into processes in individual non-crystalline nanoparticles with high spatial and temporal resolution. While in X-ray imaging of solid state targets Fourier transform holography was used for a long time as an elegant solution to the phase problem [Eisebitt et al., Nature 432, 885-888], it was only recently realized for unsupported nanospecimen, using a X-ray FEL facility [Gorkhover et al., 2017, arXiv:1707.09424]. Here atomic gas phase clusters were used as a holographic reference scatterer to image nanometer scale bio specimen – both injected by two different sources. Using a new approach, it becomes possible to overcome problems with alignment and overlap of two particle beams by using only one injector. This simplifies the experimental setup vastly, while increasing the holographic hit rate at the same time. First results of the proof of concept experiment as well as a framework to evaluate gas phase holograms will be presented.