Postdoctoral positions, for instance within the ERC Consolidator Grant project COMOTION, are available in the group of Jochen Küpper at the Center for Free-Electron Laser Science, DESY and Universität Hamburg.
Details on this and other positions are available at https://www.controlled-molecule-imaging.org/careers
Control of aerodynamically focussed beams of large molecules and nanoparticles
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This project will develop strategies to transfer large molecules/particles into high-vacuum through the use of aerodynamic lenses and liquid-sample injectors. Methodologies to cool the produced beams will be implemented and beams thoroughly characterised (density, distribution, charge-state,...)and systems for controlling (mass selection, isomer separation, alignment) these beams developed.
The produced and well-controlled cold samples of large molecules/nanoparticles will be investigated using X-ray or electron diffraction experiments in laboratory experiments, as well as at Free-Electron lasers.
The successful candidate will have an outstanding Ph.D. in experimental physics, optics, physical chemistry, or a related field. Experience with lasers, vacuum equipment, aerosol technologies or (optical and diffractive) imaging is highly desirable.
Opt. Exp. 21, 30492 (2013)
Phys. Rev. X 2, 031002 (2012)
Aerosol Sci. Technol. 22, 314 (1995)
Contacts: Dr. Daniel Horke, Prof. Dr. Jochen Küpper
Funding: ERC COMOTION, DESY
Unraveling chemical dynamics through diffractive imaging
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Modern experimental approaches allow for the diffract imaging of chemical dynamics using x-ray free-electron lasers or high-power table-top lasers. In combination with our methodologies to control molecular samples these promise unprecedented experimental details of the chemical dynamics of complex molecules. The goal of this project is to disentangle the structure-function relationship for conformer-specific chemical dynamics and for folding-type rearrangements of model peptides through time-resolved x-ray- and electron-diffractive imaging.
The project requires significant organizational work in preparation of large-collaboration beamtimes and a strong overview on experimental and theoretical developments in the field and beyond.
The successful candidate will have an outstanding Ph.D. in experimental physics, physical chemistry, or a related field. Experience with, at least some of, diffractive imaging concepts, complex molecules in the gas-phase, free-electron and table-top lasers, or vacuum equipment is highly desirable
Phys. Rev. Lett. 112, 083002 (2014)
J. Phys. B, under review (2015), arXiv:1507.02530
Int. Rev. Phys. Chem., in press (2015), arXiv:1505.05632
Contacts: Prof. Dr. Jochen Küpper
Funding: ERC COMOTION or HGF/DESY
Best wishes,
Jochen
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Controlled Molecule Imaging Group – https://www.controlled-molecule-imaging.org
Univ.-Prof. Dr. Jochen Küpper
open positions – https://www.controlled-molecule-imaging.org/careers
CFEL Molecular Physics Seminar – https://www.molecular-physics.org/news/seminar
ERC COMOTION – https://www.comotion.info
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