Results 11 to 20 of about 30,908 (277)

Ultrafast x-ray diffraction of laser-irradiated crystals [PDF]

AIP Conference Proceedings, 1997
An apparatus has been developed for measuring time-dependent x-ray diffraction. X-ray pulses from an Advanced Light Source bend magnet are diffracted by a sagittally-focusing Si (111) crystal and then by a sample crystal, presently InSb (111).
Bucksbaum, Philip H., Chang, Zenghu, Falcone, R. W., Heimann, P. A., Judd, E., Kapteyn, Henry C., Larsson, J., Lee, R. W., Lindenberg, A. M., Murnane, Margaret M., Padmore, H. A., Schuck, P. J., Wark, J. S.   +12 more
core   +8 more sources

Monitoring nonadiabatic dynamics in molecules by ultrafast X-Ray diffraction [PDF]

EPJ Web of Conferences, 2019
We theoretically examine time-resolved diffraction from molecules which undergo non-adiabatic dynamics and identify contributions from inelastic scattering that indicate the presence of an avoided crossing and the corresponding nuclear configuration.
Kowalewski Markus, Bennett Kochise, Mukamel Shaul   +2 more
doaj   +2 more sources

Ultrafast lattice response of photoexcited thin films studied by X-ray diffraction [PDF]

Structural Dynamics, 2014
Using ultrafast X-ray diffraction, we study the coherent picosecond lattice dynamics of photoexcited thin films in the two limiting cases, where the photoinduced stress profile decays on a length scale larger and smaller than the film thickness. We solve
Daniel Schick, Marc Herzog, André Bojahr, Wolfram Leitenberger, Andreas Hertwig, Roman Shayduk, Matias Bargheer   +6 more
doaj   +7 more sources

Comparison of ultrafast electron and X-ray diffraction - a computational study [PDF]

Chemical Physics Letters, 2017
We compare ultrafast electron and X-ray diffraction using quantum molecular dynamics simulations in photoexcited ethylene. The simulations of ethylene are done using the ab-initio multiconfigurational Ehrenfest (AI-MCE) approach, with electronic ...
Adam Kirrander, Bainbridge, Bergsma, Beye, Bostedt, Brown, Budarz, Debye, Debye, Dixit, Dmitrii V. Shalashilin, Dudek, Glownia, Horke, Ihee, Ischenko, Kenichiro Saita, Kim, Kirrander, Kirrander, Kirrander, Kirrander, Kobayashi, Kowalewski, Küpper, Lebantino, Makhov, Makhov, Miller, Minas Stefanou, Minitti, Minitti, Mori, Neutze, Northey, Northey, Pemberton, Petrović, Saita, Shalashilin, Shalashilin, Shalashilin, Shao, Siwick, Stankus, Stewart, Suominen, Wierl, Williamson, Yang, Yang, Zewail   +51 more
core   +2 more sources

Magnetoacoustics observed with ultrafast x-ray diffraction

Review of Scientific Instruments, 2022
In der vorliegenden Arbeit untersuche ich die Gitterdynamik von magnetisch geordneten und dünnen Filmen, deren Spinsystem mit Femtosekunden-Laserpulsen angeregt und untersucht wird. Die Quantifizierung der laserinduzierten thermischen Dynamik, der erzeugten Pikosekunden-Schallpulse sowie deren jeweiliger Einfluss auf die Magnetisierungsdynamik ist ein ...
Navirian, H., Shayduk, R., Leitenberger, Wolfram, Goldshteyn, J., Gaal, P., Bargheer, Matias (Prof. Dr.)   +5 more
openaire   +4 more sources

Single-Shot Coherent X-ray Imaging Instrument at PAL-XFEL

Applied Sciences, 2021
We developed a single-shot coherent X-ray imaging instrument at the hard X-ray beamline of the Pohang Accelerator Laboratory X-ray Free Electron Laser (PAL-XFEL).
Daeho Sung, Daewoong Nam, Myong-jin Kim, Seonghan Kim, Kyung Sook Kim, Sang-Youn Park, Sun Min Hwang, Chulho Jung, Heemin Lee, Do Hyung Cho, Minseok Kim, Intae Eom, Su Yong Lee, Changyong Song, Sangsoo Kim   +14 more
doaj   +1 more source

A Highly Stable-Output Kilohertz Femtosecond Hard X-ray Pulse Source for Ultrafast X-ray Diffraction

Applied Sciences, 2022
Femtosecond hard X-ray pulses generated by laser-driven plasma sources are eminently suitable to probe structural dynamics due to the angstrom spatial resolution and sub-picosecond time resolution. However, the insufficient flux of X-ray photons and high
Di Zhao, Pengxian You, Jing Yang, Junhong Yu, Hang Zhang, Min Liao, Jianbo Hu   +6 more
doaj   +1 more source

Structural and Magnetic Characterization of Large Area, Free-Standing Thin Films of Magnetic Ion Intercalated Dichalcogenides Mn0.25TaS2 and Fe0.25TaS2 [PDF]

, 2016
Free-standing thin films of magnetic ion intercalated transition metal dichalcogenides are produced using ultramicrotoming techniques. Films of thicknesses ranging from 30nm to 250nm were achieved and characterized using transmission electron diffraction
Cheong, S. W., Danz, Th., Liu, Q., Radu, I., Ropers, C., Tobey, R. I., Wang, L. H., Zhu, X. D.   +7 more
core   +10 more sources

Advantages of Using Hard X-ray Photons for Ultrafast Diffraction Measurements

Photonics, 2023
We present a comparative theoretical study of silicon crystals irradiated with X-ray free-electron laser pulses, using hard X-ray photons of various energies.
Vladimir Lipp, Ichiro Inoue, Beata Ziaja
doaj   +1 more source

Direct Observation of Ultrafast Non-thermal Melting by Ultrafast X-ray Diffraction [PDF]

Ultrafast Phenomena, 2001
Ultrafast nonthermal melting of femtosecond laser-irradiated germanium was observed directly for the first time using sub-picosecond, 1.54-angstrom x-ray diffraction. Such measurements allow the study of transient atomic motion fundamental to many processes in physics, chemistry, and biology.
Siders, C, Cavalleri, A, Sokolowski-Tinten, K, Toth, C, Guo, T, Kammler, M, von Hoegen, M, Wilson, K, von der Linde, D, Barty, C   +9 more
openaire   +4 more sources