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A: Fachverband Atomphysik

A 25: Poster Session I

A 25.33: Poster

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

Diffractive imaging of a xenon nanoplasma with pnCCDs — •Timo Dörries¹, Daniela Rupp², Thomas Möller¹, Mario Sauppe¹, Maria Müller¹, Anatoli Ulmer¹, Bruno Langbehn¹, Jan Philippe Müller¹, Yevheniy Ovcharenko¹, Benjamin Erk³, Jonathan Correa⁴, and Robert Hartmann⁵ — ¹Technische Universität Berlin, Germany — ²Max-Born-Institut, Berlin, Germany — ³FLASH at DESY, Hamburg, Germany — ⁴XFEL at DESY, Hamburg, Germany — ⁵pnSensors, Munich, Germany

We have studied the interplay of intense coherent XUV pulses from the free-electron laser FLASH in Hamburg with single xenon clusters. They serve as ideal model systems for light matter interaction as they are easy to produce, size scalable, free flying particles that often have spherical symmetry. The used photon energies close to 90 eV are resonant to transitions in xenon atoms and ions; consequently a nanoplasma is formed with an altered scattering response and the emission of fluorescence light. Both the elastically scattered and fluorescence photons are detected using a single-photon sensitive large area detector (pnCCDs) with high dynamic range. Different detector coatings allow for identification of the fluorescence signal. Via Mie simulations, optical properties and thus information about the electronic structure of the clusters can be extracted.