Hannover 2016 – wissenschaftliches Programm
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MO: Fachverband Molekülphysik
MO 8: Experimental Techniques
MO 8.1: Vortrag
Dienstag, 1. März 2016, 11:00–11:15, f142
Toward electron diffraction off controlled molecules — •Nele L. M. Müller1, Sebastian Trippel1, Karol Długołȩcki1, and Jochen Küpper1,2,3 — 1Center for Free-Electron Laser Science, DESY, Hamburg — 2The Hamburg Center for Ultrafast Imaging, Hamburg — 3Department of Physics, University of Hamburg
The aim of this work is to investigate the structure and intrinsic dynamics of small molecules in the gas-phase by electron diffraction. Controlling the molecules’ state and spatial orientation will allow to enhance the information retrieved from diffraction data, such as bond length and angles [1]. This contribution details the setup consisting of an electron gun and a controlled-molecules apparatus [2,3,4]. It allows for laser- and electron-interaction with the state-selected and laser-aligned molecules. Apart from recording electron diffraction patterns, the new setup allows for imaging the spatial orientation of molecules through ion Velocity-Map Imaging. Characterizing experiments and electron diffraction data of isotropic gas-phase samples will be presented.
[1] Hensley, Yang, Centurion, Phys. Rev. Lett. 109, 133202 (2012)
[2] Müller, Trippel, Długołȩcki, Küpper, J. Phys. B 48, 244001 (2015)
[3] Trippel, Mullins, Müller, Kienitz, Długołȩcki, Küpper, Mol. Phys. 111, 1738 (2013)
[4] Chang, Horke, Trippel, Küpper, Int. Rev. Phys. Chem. 34, 557 (2015)