Repetitive non-thermal melting as a timing monitor for femtosecond pump/probe X-ray experiments

Autor: Å. U. J. Bengtsson, J. C. Ekström, Xiaocui Wang, A. Jurgilaitis, Van-Thai Pham, D. Kroon, J. Larsson

Publikováno v: Structural Dynamics, Vol 7, Iss 5, Pp 054303-054303-6 (2020)

Time-resolved optical pump/X-ray probe experiments are often used to study structural dynamics. To ensure high temporal resolution, it is necessary to monitor the timing between the X-ray pulses and the laser pulses. The transition from a crystalline

Externí odkaz: https://doaj.org/article/762153257bbd49049069ad9547c65fdf

Communication: Demonstration of a 20 ps X-ray switch based on a photoacoustic transducer

Autor: A. Jarnac, Xiaocui Wang, Å. U. J. Bengtsson, J. C. Ekström, H. Enquist, A. Jurgilaitis, D. Kroon, A. I. H. Persson, V.-T. Pham, C. M. Tu, J. Larsson

Publikováno v: Structural Dynamics, Vol 4, Iss 5, Pp 051102-051102-8 (2017)

We have studied an X-ray switch based on a gold coated indium antimonide crystal using time-resolved X-ray diffraction and demonstrated that the switch could reduce the pulse duration of a 100 ps X-ray pulse down to 20 ps with a peak reflectivity of

Externí odkaz: https://doaj.org/article/df10780aeb5941e3908a272f68e9e7a3

Generation of a large compressive strain wave in graphite by ultrashort-pulse laser irradiation

Autor: Martin Nors Pedersen, A. Jurgilaitis, Xiaocui Wang, Jörgen Larsson, Michael Wulff, Amélie Jarnac, Henrik Enquist, Fabien Dorchies, Chien Ming Tu, J. C. Ekström, U.J. Bengtsson

Publikováno v: Structural Dynamics
Structural Dynamics, AIP Publishing, 2019, 6 (2), pp.024501. ⟨10.1063/1.5089291⟩
Structural Dynamics, 2019, 6 (2), pp.024501. ⟨10.1063/1.5089291⟩
Structural Dynamics, Vol 6, Iss 2, Pp 024501-024501-5 (2019)

We have studied strain wave generation in graphite induced by an intense ultrashort laser pulse. The study was performed in the intensity regime above the ablation threshold of graphite. The aim was to maximize the strain and, thus, also the internal

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dceadd2cd5225f0f4471f21e4e6010fd