Publikation: Probing Dynamics in Colloidal Crystals with Pump-Probe Experiments at LCLS : Methodology and Analysis
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2017
Autor:innen
Mukharamova, Nastasia
Lazarev, Sergey
Chollet, Matthieu
Singer, Andrej
Kurta, Ruslan
Dzhigaev, Dmitry
Gorobtsov, Oleg
Williams, Garth
Zhu, Diling
et al.
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Applied Sciences. 2017, 7(6), 519. eISSN 1454-5101. Available under: doi: 10.3390/app7050519
Zusammenfassung
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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530 Physik
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free-electron laser; pump-probe; colloidal crystal; dynamics
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MUKHARAMOVA, Nastasia, Sergey LAZAREV, Janne-Mieke MEIJER, Matthieu CHOLLET, Andrej SINGER, Ruslan KURTA, Dmitry DZHIGAEV, Oleg GOROBTSOV, Garth WILLIAMS, Diling ZHU, 2017. Probing Dynamics in Colloidal Crystals with Pump-Probe Experiments at LCLS : Methodology and Analysis. In: Applied Sciences. 2017, 7(6), 519. eISSN 1454-5101. Available under: doi: 10.3390/app7050519BibTex
@article{Mukharamova2017-06Probi-39653,
year={2017},
doi={10.3390/app7050519},
title={Probing Dynamics in Colloidal Crystals with Pump-Probe Experiments at LCLS : Methodology and Analysis},
number={6},
volume={7},
journal={Applied Sciences},
author={Mukharamova, Nastasia and Lazarev, Sergey and Meijer, Janne-Mieke and Chollet, Matthieu and Singer, Andrej and Kurta, Ruslan and Dzhigaev, Dmitry and Gorobtsov, Oleg and Williams, Garth and Zhu, Diling},
note={Article Number: 519}
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<dcterms:abstract xml:lang="eng">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.</dcterms:abstract>
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