Dresden 2017 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 63: Poster: Quantum Dots and Optics

HL 63.14: Poster

Mittwoch, 22. März 2017, 15:00–19:00, P1A

An ultrafast electron diffraction setup for molecules in aqueous solution — •Arne Ungeheuer, Arne Senftleben, Marlene Adrian, Silvio Morgenstern, and Thomas Baumert — Institut für Physik, Universität Kassel, 34132 Kassel, Germany

Here we present a scheme for an ultrafast electron diffraction setup for electron diffraction on liquids and molecules in aqueous solution. We adapt the idea to use two obliquely colliding single laminar jets for the creation of a leaf-shaped flatjet with submicrometer thickness required for electron diffraction in transmission mode. The issue of multiple scattering in these relatively thick samples is addressed by the use of a Wien energy-filter to increase the signal-to-noise ratio. Preliminary results of field-simulations for a suitable filter-geometry are shown.