# FS-CFELCMI

 2019-01-0809:11 [PUBDB-2019-00082] Journal Article et al Few-femtosecond extreme-ultraviolet pulses fully reconstructed by a ptychographic technique Optics express 26(6), 6771 - 6784 (2018) [10.1364/OE.26.006771]   Sub-10-fs pulses tunable in the extreme-ultraviolet (XUV) spectral region are particularly important in many research fields: from atomic and molecular spectroscopy to the study of relaxation processes in solids and transition phase processes, from holography to free-electron laser injection. A crucial prerequisite for all applications is the accurate measurement of the temporal characteristics of these pulses [...] OpenAccess: PDF PDF (PDFA); 2019-01-0809:08 [PUBDB-2019-00080] Journal Article Špirko, V. Anomalous phosphine sensitivity coefficients as probes for a possible variation of the proton-to-electron mass ratio Monthly notices of the Royal Astronomical Society 473(4), 4986 - 4992 (2018) [10.1093/mnras/stx2696]   OpenAccess: PDF PDF (PDFA); 2019-01-0716:38 [PUBDB-2019-00067] Journal Article et al Publisher Correction: Coherent diffractive imaging of single helium nanodroplets with a high harmonic generation source Nature Communications 9(1), 302 (2018) [10.1038/s41467-017-02702-x]   Coherent diffractive imaging of individual free nanoparticles has opened routes for the in situ analysis of their transient structural, optical, and electronic properties. So far, single-shot single-particle diffraction was assumed to be feasible only at extreme ultraviolet and X-ray free-electron lasers, restricting this research field to large-scale facilities. [...] OpenAccess: PDF PDF (PDFA); 2019-01-0114:20 [PUBDB-2019-00002] Journal Article et al A Hyperfine-resolved Rotation–Vibration Line List of Ammonia (NH$_3$) The astrophysical journal 870(1), 24 (2019) [10.3847/1538-4357/aaef7e]   A comprehensive, hyperfine-resolved rotation-vibration line list for the ammonia molecule ($^{14}$NH$_3$) is presented. The line list, which considers hyperfine nuclear quadrupole coupling effects, has been computed using robust, first principles methodologies based on a highly accurate empirically refined potential energy surface. [...] Fulltext: GIF; OpenAccess: PDF PDF (PDFA); 2018-12-2709:04 [PUBDB-2018-05902] Dissertation / PhD Thesis Küpper, J. High-intracavity-power thin-disk laser for the alignment of molecules 137 pp. (2019) [10.3204/PUBDB-2018-05902] = Dissertation, University of Hamburg, 2018   The subject of this thesis was the development of a thin-disk laser with a continuous waveintracavity intensity of more than $10^{10} {W}{cm^{-2}}$ for the adiabatic alignment ofmolecules. In particular, this necessitates an intracavity power of more than 100 kW, aninternal focus with a radius of 20 µm, a well-defined and stable polarization, and benefitsfrom fundamental transverse mode operation. [...] Fulltext: JPG; OpenAccess: PDF PDF (PDFA); 2018-12-1816:16 [PUBDB-2018-05701] Journal Article et al Optimized cell geometry for buffer-gas-cooled molecular-beam sources We have designed, constructed, and commissioned a cryogenic helium buffer-gas source for producing a cryogenically cooled molecular beam and evaluated the effect of different cell geometries on the intensity of the produced molecular beam, using ammonia as a test molecule. Planar and conical entrance and exit geometries are tested [...] OpenAccess: PDF PDF (PDFA); 2018-12-1009:13 [PUBDB-2018-05309] Bachelor Thesis Küpper, J. Detektor zur zeitaufgelösten Abbildung von Ionenimpulsen Hamburg 24 pp. (2017) [10.3204/PUBDB-2018-05309] = Bachelorarbeit, Universität Hamburg, 2017   Following the example of L. Dinu et al. [...] Fulltext: PNG; OpenAccess: PDF PDF (PDFA); 2018-12-0713:10 [PUBDB-2018-05297] Conference Presentation (Invited) Küpper, J. Novel sample-delivery concepts for aerosol science: efficient injection and cooling, particle control, and atomic resolution imaging 1st International Symposium on Aerosol Chemistry and Related Reaction Dynamics, 1st iSACRED, National Sun Yat-sen UniversityKaohsiung, National Sun Yat-sen University, Taiwan, 5 Dec 2018 - 8 Dec 2018 External link: Fulltext 2018-12-0314:40 [PUBDB-2018-05155] Talk (non-conference) (Invited) Küpper, J. Controlled (bio)molecules for advanced imaging Seminar, Institute of Atomic and Molecular Sciences, Academia Sinica, National Taiwan UniversityTaipei, Institute of Atomic and Molecular Sciences, Academia Sinica, National Taiwan University, Taiwan, 3 Dec 2018 - 4 Dec 2018 External link: Fulltext 2018-12-0120:24 [PUBDB-2018-05141] Journal Article et al Coulomb explosion imaging of $CH_{3}I$ and $C_{2}ClI$ photodissociation dynamics The journal of chemical physics 149(20), 204313 (2018) [10.1063/1.5041381]   The photodissociation dynamics of CH$_3$I and CH$_2$ClI at 272 nm were investigated by time-resolved Coulomb explosion imaging, with an intense non-resonant 815 nm probe pulse. Fragment ion momenta over a wide m/z range were recorded simultaneously by coupling a velocity map imaging spectrometer with a pixel imaging mass spectrometry camera. [...] Published on 2018-11-30. Available in OpenAccess from 2019-11-30.: PDF PDF (PDFA);