Results 251 to 260 of about 30,908 (277)

Ultrafast X-ray Diffraction using Synchrotrons and Plasma Sources

Frontiers in Optics 2011/Laser Science XXVII, 2011
Ultrafast X-ray diffraction yields material-specific information on transient strain in crystals, thin films and multilayers. Here we highlight ultrafast heat-driven processes in ferroelectric and ferromagnetic oxides.
D. Schick, R. Shayduk, M. Herzog, A. Bojahr, J. Goldshteyn, H. Navirian, W. Leitenberger, P. Gaal, M. Bargheer   +8 more
openaire   +1 more source

Picosecond-milliangstrom resolution dynamics by ultrafast x-ray diffraction

SPIE Proceedings, 1997
Optical pump, x-ray diffraction probe measurements have been used to study the lattice dynamics of single crystals with picosecond-milliangstrom resolution by employing a table- top, laser-driven x-ray source. The x-ray source, consisting of an approximately 30 fs, 75 mJ/pulse, 20 Hz repetition rate, terawatt laser system and a moving Cu wire target ...
Ting Guo, Christoph G. Rose-Petruck, Ralph Jimenez, Ferenc Raksi, Jeffrey A. Squier, Barry Walker, Kent R. Wilson, Christopher P. P. Barty   +7 more
openaire   +1 more source

Ultrafast X-ray diffraction and absorption

1997
Abstract The conventional way to study ultrafast chemical dynamics is by ultrafast optical pump/probe experiments. Unfortunately, such optical measurements cannot be directly inverted to give the desired positions of the atoms as a function of time except in very favourable cases where the system is small and there is a prior knowledge ...
openaire   +1 more source

Characterization and comparison of X-ray focusing optics for ultrafast X-ray diffraction experiments

Applied Physics B, 2008
We have characterized and compared the performance of different types of multi-layer optics for the focusing of femtosecond X-ray pulses. Using X-ray pulses at 8 keV, from a laser-driven plasma source we have measured the spatial distribution of the diffracted X-rays directly after and in the focal plane of the various X-ray optical devices.
U. Shymanovich, M. Nicoul, K. Sokolowski-Tinten, A. Tarasevitch, C. Michaelsen, D. von der Linde   +5 more
openaire   +1 more source

Structure and Ultrafast X-ray Diffraction of the Hydrated Metaphosphate

The Journal of Physical Chemistry A
We study the pathway of metaphosphate hydration when a metaphosphate anion is dissolved in liquid water with an explicit water model. For this purpose, we propose a sequential Monte Carlo algorithm incorporated with the ab initio quantum mechanics/molecular mechanics (QM/MM) method, which can reduce the amount of ab initio QM/MM sampling while ...
Ming Zhang, Sizhe Li, Hanwei Yang, Gaoxing Song, Chengyin Wu, Zheng Li   +5 more
openaire   +2 more sources

Ultrafast X-ray Diffraction of Photodissociation of Iodoform in Solution

AIP Conference Proceedings, 2007
We studied structural dynamics in the photodissociation of iodoform (CHI3) dissolved in methanol by time‐resolved x‐ray diffraction. A femtosecond laser pulse induces the bond‐breaking of an iodine atom from iodoform and an x‐ray pulse generated from a synchrotron gives time‐dependent diffraction signal which contains the structural information of ...
Lee, J.H., Kim, T.K., Kim, J., Lorenc, M., Kong, Q., Wulff, M., Ihee, H. Ihee, Hyotcherl   +6 more
openaire   +1 more source

Ultrafast X-ray diffraction

2003 European Quantum Electronics Conference. EQEC 2003 (IEEE Cat No.03TH8665), 2004
D. von der Linde, K. Sokolowski-Tinten
openaire   +1 more source

Oxygen K-edge X-ray Absorption Spectra

Chemical Reviews, 2020
Federica Frati, Myrtille O J Y Hunault, Frank M F De Groot   +2 more
exaly  

X-ray photoelectron spectroscopy: Towards reliable binding energy referencing

Progress in Materials Science, 2020
Grzegorz Greczynski, Lars Hultman
exaly  

High-resolution X-ray luminescence extension imaging

Nature, 2021
Xiangyu Ou, Xian Qin
exaly