Heidelberg 2015 – wissenschaftliches Programm
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MO: Fachverband Molekülphysik
MO 17: Cold Molecules 3
MO 17.4: Vortrag
Donnerstag, 26. März 2015, 12:00–12:15, PH/HS1
Toward Controlling Large Molecules — •Nicole Teschmit1, Daniel Horke1, and Jochen Küpper1,2 — 1Center for Free-Electron Laser Science, DESY — 2Department of Physics and Center for Ultrafast Imaging, University of Hamburg
The control of small gas-phase molecules has been experimentally demonstrated. This
includes the separation of different conformers [1], the alignment and orientation
of molecules in space [2], and the separation of different quantum states
or clusters by using static and/or dynamic electric fields [3].
We are now working toward applying these techniques to larger molecules. This requires internally cold
gas-phase molecules with high density, which will be produced with a new
laser-desorption setup.
By controlling large molecules structural and dynamic information can be gained
from X-ray or electron diffractive imaging experiments, for example at free-electron lasers [4].
[1] Y.P. Chang et al, Science 342, 98
[2] L. Holmegaard et al, Nat. Phys. 6, 428
[3] D. A. Horke et al, Angew. Chem. Int. Ed. 53, 1
[4] J. Küpper et al, Phys. Rev. Lett. 112, 083002