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MO: Fachverband Molekülphysik

MO 24: Experimental Techniques

MO 24.1: Vortrag

Freitag, 9. März 2018, 10:30–10:45, PA 2.150

Investigations of Molecular Dynamics using Gas-Phase Ultrafast Electron Diffraction — Thomas Wolf^1,2, Jie Yang¹, •Matthew S. Robinson³, J. Pedro F. Nunes⁴, Theodore Vecchione¹, Renaki Li¹, Nick Hartmann¹, Xiaozhe Shen¹, Ryan Coffee¹, Jeff Corbett¹, James Cryan^1,2, Alan Fry¹, Kelly Gaffney¹, Tais Gorkhover¹, Karsten Hast¹, Kareem Hegazy¹, Keith Jobe¹, Igor Makasyuk¹, Alexander Reid¹, Joseph Robinson¹, Sharon Vetter¹, Fenglin Wang¹, Stephen Weathersby¹, Kyle Wilkin⁵, Charles Yoneda¹, Qiang Zehng¹, Martin Centurion⁵, Markus Gühr^1,2,3, and Xijie Wang¹ — ¹SLAC, Menlo Park, USA — ²PULSE, Menlo Park, USA — ³Physik und Astronomie, Potsdam, Germany — ⁴Chemistry, York, UK — ⁵Physics and Astronomy, Lincoln-Ne, USA.

With its ability to provide direct structural information of molecules and how they change in an excited state, Ultrafast Electron Diffraction (UED) is becoming one of the most useful techniques in ultrafast science.[1] At the forefront of this are the MeV gas-phase UED experiments carried out at SLAC, which have observed molecular wavepackets using diffraction methods with unprecedented sub-Ångstom spatial, and 100 fs temporal, resolution.[2,3] In this talk I will discuss several UED experiments, including the study of N2 rotational wavepackts, I2 vibrational wavepackets, and the recent investigation of the ring-opening process of stilbene oxide. 1 - Sciaini, G. et al. Rep. Prog. Phys. 74, 96101, 2011. 2 - Yang, J. et al., Nat. Commun. 7, 11232, 2016. 3 - Yang, J. et al., Phys. Rev. Lett. 117, 153002, 2016.