Rostock 2019 – wissenschaftliches Programm
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MO: Fachverband Molekülphysik
MO 20: Atomic Physics, Molecular Physics, and Quantum Optics with X-ray FELs (joint session MO/A)
MO 20.4: Vortrag
Donnerstag, 14. März 2019, 11:15–11:30, S HS 002 Biologie
Controlling nanoparticles with external fields — •Jannik Lübke1, Salah Awel1,4, Armando Estillore1, Nils Roth1,2, Amit Samanta1, Lena Worbs1, Daniel Horke1,4, and Jochen Küpper1,2,3,4 — 1Center for Free-Electron Laser Science (CFEL), Deutsches Elektronen-Synchrotron (DESY), Hamburg, Germany — 2Department of Physics, Universität Hamburg, Germany — 3Department of Chemistry, Universität Hamburg, Germany — 4The Hamburg Center for Ultrafast Imaging (CUI), Universität Hamburg,
In single-particle coherent x-ray diffraction experiments, diffraction patterns are recorded from individual sample particles. To overcome the inherently small signal-to-noise ratio, large numbers of identical particles need to be controlled and guided subsequently into the small focus of free-electron lasers (FELs). We establish particle control for example via electrostatic deflection or optical guiding in tractor beams [1], ultimately aiming at delivering one nanoparticle at a time into successive FEL shots.
[1] Eckerskorn et al., Proc. SPIE 9548, 95480H1-95480H12, 2015