J Ullrich
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Explore the profile of J Ullrich including associated specialties, affiliations and a list of published articles.
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Articles
142
Citations
505
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Recent Articles
1.
Subramaniam J, Hubig M, Muggenthaler H, Schenkl S, Ullrich J, Pourtier G, et al.
Int J Legal Med
. 2023 Jun;
137(6):1815-1837.
PMID: 37336822
Rectal temperature measurement (RTM) from crime scenes is an important parameter for temperature-based time of death estimation (TDE). Various influential variables exist in TDE methods like the uncertainty in thermal...
2.
Belsa B, Amini K, Liu X, Sanchez A, Steinle T, Steinmetzer J, et al.
Struct Dyn
. 2021 Sep;
8(4):049901.
PMID: 34497865
[This corrects the article DOI: 10.1063/4.0000046.].
3.
Belsa B, Amini K, Liu X, Sanchez A, Steinle T, Steinmetzer J, et al.
Struct Dyn
. 2021 May;
8(1):014301.
PMID: 34026922
Visualizing molecular transformations in real-time requires a structural retrieval method with Ångström spatial and femtosecond temporal atomic resolution. Imaging of hydrogen-containing molecules additionally requires an imaging method sensitive to the...
4.
Sanchez A, Amini K, Wang S, Steinle T, Belsa B, Danek J, et al.
Nat Commun
. 2021 Mar;
12(1):1520.
PMID: 33750798
Ubiquitous to most molecular scattering methods is the challenge to retrieve bond distance and angle from the scattering signals since this requires convergence of pattern matching algorithms or fitting methods....
5.
Krasniqi F, Zhong Y, Epp S, Foucar L, Trigo M, Chen J, et al.
Phys Rev Lett
. 2018 Mar;
120(10):105501.
PMID: 29570335
Long wavelength vibrational modes in the ferromagnetic semiconductor Ga_{0.91}Mn_{0.09}As are investigated using time resolved x-ray diffraction. At room temperature, we measure oscillations in the x-ray diffraction intensity corresponding to coherent...
6.
Zhong Y, Ostach D, Scholz M, Epp S, Techert S, Schlichting I, et al.
J Phys Condens Matter
. 2016 Dec;
29(9):095701.
PMID: 27991427
Carrier and lattice dynamics of laser excited CdTe was studied by time-resolved reflectivity for excitation fluences spanning about three orders of magnitude, from 0.064 to 6.14 mJ cm. At fluences...
7.
Wolter B, Pullen M, Le A, Baudisch M, Doblhoff-Dier K, Senftleben A, et al.
Science
. 2016 Nov;
354(6310):308-312.
PMID: 27846561
Visualizing chemical reactions as they occur requires atomic spatial and femtosecond temporal resolution. Here, we report imaging of the molecular structure of acetylene (CH) 9 femtoseconds after ionization. Using mid-infrared...
8.
von Hahn R, Becker A, Berg F, Blaum K, Breitenfeldt C, Fadil H, et al.
Rev Sci Instrum
. 2016 Jul;
87(6):063115.
PMID: 27370434
An electrostatic cryogenic storage ring, CSR, for beams of anions and cations with up to 300 keV kinetic energy per unit charge has been designed, constructed, and put into operation....
9.
Pullen M, Wolter B, Le A, Baudisch M, Sclafani M, Pires H, et al.
Nat Commun
. 2016 Jun;
7:11922.
PMID: 27329236
The ability to directly follow and time-resolve the rearrangement of the nuclei within molecules is a frontier of science that requires atomic spatial and few-femtosecond temporal resolutions. While laser-induced electron...
10.
Schmoger L, Schwarz M, Baumann T, Versolato O, Piest B, Pfeifer T, et al.
Rev Sci Instrum
. 2015 Nov;
86(10):103111.
PMID: 26520944
Preparing highly charged ions (HCIs) in a cold and strongly localized state is of particular interest for frequency metrology and tests of possible spatial and temporal variations of the fine...