CFEL-CMI

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2018-06-15
11:35
OpenAccess [PUBDB-2018-02283] Contribution to a conference proceedings
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Characterization of Polarization-Dependent Emittance From an Array of Au Nanorods using Velocity Map Imaging Spectrometer
9th International Particle Accelerator Conference, IPAC 2018, VancouverVancouver, Canada, 30 Apr 2018 - 4 May 20182018-04-302018-05-04 3 pp. () [10.3204/PUBDB-2018-02283]  GO
Electron beams of high quality, e.g., low emittance, are of crucial importance for cutting-edge scientific instruments, such as x-ray free electron lasers (XFELs) and ultrafast electron diffraction (UED) setups. A velocity-map-imaging (VMI) spectrometer was implemented to characterize the intrinsic root-mean-square (rms) normalized emittance from photocathodes. [...]
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2018-05-29
14:42
OpenAccess [PUBDB-2018-02134] Report/Journal Article
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Observation of different reactivities of para and ortho-water towards trapped diazenylium ions
[arXiv:1804.05925]
Water is one of the most fundamental molecules in chemistry, biology and astrophysics. It exists as two distinct nuclear-spin isomers, para- and ortho-water, which do not interconvert in isolated molecules. [...]
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ddc:500
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2018-05-14
15:17
OpenAccess [PUBDB-2018-01956] Journal Article
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Time-resolved inner-shell photoelectron spectroscopy: From a bound molecule to an isolated atom
Due to its element and site specificity, inner-shell photoelectron spectroscopy is a widely used technique to probe the chemical structure of matter. Here, we show that time-resolved inner-shell photoelectron spectroscopy can be employed to observe ultrafast chemical reactions and the electronic response to the nuclear motion with high sensitivity [...]
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2018-05-08
16:04
OpenAccess [PUBDB-2018-01927] Master Thesis
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Stark effect influenced rotational coherence spectroscopy
90 pp. () [10.3204/PUBDB-2018-01927] = Masterarbeit, University of Hamburg, 2018  GO
Rotationally cooled molecules offer versatile applications. However, many of thoseexperiments rely on a knowledge about the occupation of rotational states $g_J$ withdistinct rotational angular momentum quantum numbers J in the molecular probe. [...]
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2018-05-08
09:10
arXiv [PUBDB-2018-01916] Report/Journal Article
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Mapping the Complete Reaction Path of a Complex Photochemical Reaction
[arXiv:1805.02170]
We probe the dynamics of dissociating $CS^2$ molecules across the entire reaction pathway upon excitation. Photoelectron spectroscopy measurements using laboratory-generated femtosecond extreme ultraviolet pulses monitor the competing dissociation, internal conversion, and intersystem crossing dynamics. [...]
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2018-04-13
09:33
OpenAccess [PUBDB-2018-01720] Journal Article
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Velocity-Map Imaging for Emittance Characterization of Multiphoton Electron Emission from a Gold Surface
A velocity-map-imaging spectrometer is demonstrated to characterize the normalized emittance (root-mean-square, rms) of photoemitted electron bunches. Both the two-dimensional spatial distribution and the projected velocity distribution images of photoemitted electrons are recorded by the detection system and analyzed to obtain the normalized emittance (rms). [...]
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2018-03-21
13:57
[PUBDB-2018-01511] Conference Presentation (Invited)

Strong-field ionization of laser-aligned molecules
82. Jahrestagung der DPG und DPG-Frühjahrstagung der Sektion Atome, Moleküle, Quantenoptik und Plasmen (SAMOP), DPG-Frühjahrstagung, Friedrich-Alexander-Universität Erlangen-NürnbergErlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany, 4 Mar 2018 - 9 Mar 20182018-03-042018-03-09
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2018-03-21
13:48
[PUBDB-2018-01510] Conference Presentation (Invited)

H$\mathrm{_2}$O fundamentals from symmetry to chemical reactions
XVII. DESY Research Course 2018: Trends in Water Research, DESY HamburgHamburg, DESY Hamburg, Germany, 26 Feb 2018 - 1 Mar 20182018-02-262018-03-01
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2018-03-21
12:56
[PUBDB-2018-01508] Conference Presentation (Invited)

Strong-field ionization of laser-aligned molecules
Gordon Research Conference: 2018 Photoionization and Photodetachment, GRC, Hotel GalvezGalveston, Hotel Galvez, Texas, USA, 18 Feb 2018 - 23 Feb 20182018-02-182018-02-23
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2018-02-02
16:01
OpenAccess [PUBDB-2018-01024] Journal Article
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Femtosecond X-ray diffraction from an aerosolized beam of protein nanocrystals
High-resolution Bragg diffraction from aerosolized single granulovirus nano-crystals using an X-ray free-electron laser is demonstrated. The outerdimensions of the in-vacuum aerosol injector components are identical toconventional liquid-microjet nozzles used in serial diffraction experiments,which allows the injector to be utilized with standard mountings. [...]
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