FS-CFEL-1

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2017-10-20
12:14
OpenAccess [PUBDB-2017-11466] Preprint/Report
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Femtosecond x-ray diffraction from an aerosolized beam of protein nanocrystals
[arXiv:1702.04014] ddc:530
We demonstrate near-atomic-resolution Bragg diffraction from aerosolized single granulovirus crystals using an x-ray free-electron laser. The form of the aerosol injector is nearly identical to conventional liquid-microjet nozzles, but the x-ray-scattering background is reduced by several orders of magnitude by the use of helium carrier gas rather than liquid. [...]
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2017-10-18
11:07
OpenAccess [PUBDB-2017-11440] Report/Journal Article
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Characterizing and optimizing a laser-desorption molecular beam source
[arXiv:1706.04083] ddc:540
The design and characterization of a new laser-desorption molecular beam source, tailored for use in x-ray free-electron laser and ultrashort-pulse laser imaging experiments, is presented. It consists of a single mechanical unit containing all source components, including the molecular-beam valve, the sample, and the fiber-coupled desorption laser, which is movable in five axes, as required for experiments at central facilities. [...]
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2017-10-10
21:00
OpenAccess [PUBDB-2017-11260] Journal Article
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Communication: General variational approach to nuclear-quadrupole coupling in rovibrational spectra of polyatomic molecules
ddc:540
A general algorithm for computing the quadrupole-hyperfine effects in the rovibrational spectra of polyatomic molecules is presented for the case of ammonia (NH$_3$). The method extends the general variational approach TROVE by adding the extra term in the Hamiltonian that describes the nuclear quadrupole coupling, with no inherent limitation on the number of quadrupolar nuclei in a molecule. [...]
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2017-10-10
16:27
[PUBDB-2017-11259] Poster
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Laser-induced acoustic desorption of large molecules
DPG-Frühjahrstagung der Sektion AMOP, Meeting locationHeidelberg, Germany, 23 Mar 2015 - 27 Mar 20152015-03-232015-03-27

State-, conformer-, and size-selection of small neutral molecules can be achieved through the dispersion of the molecular beam with electric fields [1]. State-selected small molecules can then be well aligned and oriented by laser and static electric fields [2]. [...]
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2017-10-10
15:45
[PUBDB-2017-11257] Conference Presentation (After Call)
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Laser-induced acoustic desorption of large molecules for FEL experiments
DPG-Frühjahrstagung SAMOP, Meeting locationMainz, Germany, 6 Mar 2017 - 10 Mar 20172017-03-062017-03-10

Laser-induced acoustic desorption (LIAD) is a promising technique for gentle and efficient preparation of large intact neutral molecules into the gas-phase [1]. Here we demonstrate our newly set-up LIAD source, designed for prolonged measurement time, as required by FEL experiments, through automatic sample replenishment. [...]
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2017-10-10
13:52
[PUBDB-2017-11255] Journal Article
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Impulsive laser-induced alignment of OCS molecules at FERMI
ddc:540
We demonstrate the experimental realization of impulsive alignment of carbonyl sulfide (OCS) molecules at the Low Density Matter Beamline (LDM) at the free-electron laser FERMI. OCS molecules in a molecular beam were impulsively aligned using 200 fs pulses from a near-infrared laser [...]
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2017-10-10
10:56
[PUBDB-2017-11253] Talk (non-conference) (Other)
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Photophysics and diffractive imaging of controlled gas-phase molecules


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2017-10-05
15:34
[PUBDB-2017-11182] Journal Article
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Post-Sample Aperture for Low Background Diffraction Experiments of X-Ray Free-Electron Lasers
ddc:540
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2017-09-29
13:41
[PUBDB-2017-11083] Conference Presentation (Invited)

Imaging molecules through strong-field-ionization and electron rescattering
FRIAS Junior Researcher Conference - Beyond Molecular Movies: Bringing time-domain spectroscopy to diffraction imaging, Meeting locationFreiburg, Freiburg Institute for Advanced Studies (FRIAS), Albert-Ludwigs-Universität Freiburg, Germany, 13 Sep 2017 - 16 Sep 20172017-09-132017-09-16


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2017-09-29
13:31
[PUBDB-2017-11082] Conference Presentation (Invited)

Conformer manipulation in large molecular systems
ASPIRE network meeting, Meeting locationAbbaye des Vaux de Cernay, France, 11 Sep 2017 - 13 Sep 20172017-09-112017-09-13


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