Probing Dynamics in Colloidal Crystals with Pump-Probe Experiments at LCLS: Methodology and Analysis
Source abstract
Abstract
We present results of the studies of dynamics in colloidal crystals performed by pump-probe experiments using an X-ray free-electron laser (XFEL). Colloidal crystals were pumped with an infrared laser at a wavelength of 800 nm with varying power and probed by XFEL pulses at an energy of 8 keV with a time delay up to 1000 ps. The positions of the Bragg peaks, and their radial and azimuthal widths were analyzed as a function of the time delay. The spectral analysis of the data did not reveal significant enhancement of frequencies expected in this experiment. This allowed us to conclude that the amplitude of vibrational modes excited in colloidal crystals was less than the systematic error caused by the noise level.
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Research context
OpenAlex topics: Advanced X-ray Imaging Techniques · Advanced Electron Microscopy Techniques and Applications · Iron oxide chemistry and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, D-22607 Hamburg, Germany
National Research Tomsk Polytechnic University (TPU), Pr. Lenina 30, 634050 Tomsk, Russia
Van ’t Hoff Laboratory for Physical and Colloid Chemistry, Debye Institute for Nanomaterials Science, Utrecht University, Padualaan 8, 3508 TB Utrecht, The Netherlands
Present address: Department of Physics, University of Konstanz, D-78457 Konstanz, Germany
SLAC National Accelerator Laboratory, 2575 Sand Hill Rd, Menlo Park, CA 94025, USA
UC San Diego, 9500 Gilman Dr., La Jolla, CA 92093, USA
Present address: European XFEL GmbH, Holzkoppel 4, D-22869 Schenefeld, Germany
Present address: NSLS-II, Brookhaven National Laboratory, Upton, NY 11973-5000, USA
Present address: UC San Diego, 9500 Gilman Dr., La Jolla, CA 92093, USA
Shubnikov Institute of Crystallography RAS, Leninskii Pr. 59, 119333 Moscow, Russia
Center for Free-Electron Laser Science, DESY, Notkestraße 85, D-22607 Hamburg, Germany
National Research Nuclear University MEPhI, Kashirskoye Ch. 31, 115409 Moscow, Russia
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