Stuttgart 2012 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 12: Interaction with strong or short laser pulses III

A 12.5: Vortrag

Dienstag, 13. März 2012, 11:45–12:00, V47.03

Photoelectron Diffraction in Laser-Aligned p-Fluorophenyl-acetylene (p-FAB) at LCLS — •Rebecca Boll^1,2, Denis Anielski^1,2, Christoph Bostedt³, Lauge Christensen⁴, Ryan Coffee³, Sankar De⁴, Sascha Epp^1,2, Benjamin Erk^1,2, Lutz Foucar^1,5, Jochen Küpper^6,7, Daniel Rolles^1,5, Arnaud Rouzee⁸, Benedikt Rudek^1,2, Artem Rudenko^1,2, Henrik Stapelfeldt⁴, Stephan Stern⁶, Sebastian Trippel⁶, and Joachim Ullrich^1,2 — ¹Max Planck Advanced Study Group at CFEL, Hamburg, Germany — ²Max Planck Institute for Nuclear Physics, Heidelberg, Germany — ³SLAC National Accelerator Laboratory, Stanford, USA — ⁴Aarhus University, Denmark — ⁵Max Planck Institute for Medical Research, Heidelberg, Germany — ⁶CFEL, Hamburg, Germany — ⁷University of Hamburg, Germany — ⁸Max Born Institute, Berlin, Germany

Photoelectron diffraction patterns of adiabatically laser-aligned and mixed-field oriented p-FAB molecules were measured using femtosecond FEL-pulses at different photon energies at LCLS. Ions and electrons were recorded simultaneously in a double-sided velocity map imaging spectrometer installed in the CFEL-ASG MultiPurpose (CAMP) chamber. From the obtained angular distributions of the photoelectrons that are emitted and scattered within a single molecule, it is possible to retrieve information on the molecular structure on an Angstrom length scale.