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Attosecond Coherence Time Characterization in Hard X-Ray Free-Electron Laser

One of the key challenges in scientific researches based on free-electron lasers (FELs) is the characterization of the coherence time of the ultra-fast hard x-ray pulse, which fundamentally influences the interaction process between x-rays and materials. Conventional optical methods, based on autoco...

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Autores principales: Zhou, Guanqun, Decker, Franz-Josef, Ding, Yuantao, Jiao, Yi, Lutman, Alberto A., Maxwell, Timothy J., Raubenheimer, Tor O., Wang, Jiuqing, Holman, Aaron J., Tsai, Cheng-Ying, Wu, Jerome Y., Wu, Weiwei, Yang, Chuan, Yoon, Moohyun, Wu, Juhao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7136262/
https://www.ncbi.nlm.nih.gov/pubmed/32249769
http://dx.doi.org/10.1038/s41598-020-60328-4
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author Zhou, Guanqun
Decker, Franz-Josef
Ding, Yuantao
Jiao, Yi
Lutman, Alberto A.
Maxwell, Timothy J.
Raubenheimer, Tor O.
Wang, Jiuqing
Holman, Aaron J.
Tsai, Cheng-Ying
Wu, Jerome Y.
Wu, Weiwei
Yang, Chuan
Yoon, Moohyun
Wu, Juhao
author_facet Zhou, Guanqun
Decker, Franz-Josef
Ding, Yuantao
Jiao, Yi
Lutman, Alberto A.
Maxwell, Timothy J.
Raubenheimer, Tor O.
Wang, Jiuqing
Holman, Aaron J.
Tsai, Cheng-Ying
Wu, Jerome Y.
Wu, Weiwei
Yang, Chuan
Yoon, Moohyun
Wu, Juhao
author_sort Zhou, Guanqun
collection PubMed
description One of the key challenges in scientific researches based on free-electron lasers (FELs) is the characterization of the coherence time of the ultra-fast hard x-ray pulse, which fundamentally influences the interaction process between x-rays and materials. Conventional optical methods, based on autocorrelation, are very difficult to realize due to the lack of mirrors. Here, we experimentally demonstrate a novel method which yields a coherence time of 174.7 attoseconds for the 6.92 keV FEL pulses at the Linac Coherent Light Source. In our experiment, a phase shifter is adopted to control the cross-correlation between x-ray and microbunched electrons. This approach provides critical diagnostics for the temporal coherence of x-ray FELs and is universal for general machine parameters; applicable for wide range of photon energy, radiation brightness, repetition rate and FEL pulse duration.
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spelling pubmed-71362622020-04-11 Attosecond Coherence Time Characterization in Hard X-Ray Free-Electron Laser Zhou, Guanqun Decker, Franz-Josef Ding, Yuantao Jiao, Yi Lutman, Alberto A. Maxwell, Timothy J. Raubenheimer, Tor O. Wang, Jiuqing Holman, Aaron J. Tsai, Cheng-Ying Wu, Jerome Y. Wu, Weiwei Yang, Chuan Yoon, Moohyun Wu, Juhao Sci Rep Article One of the key challenges in scientific researches based on free-electron lasers (FELs) is the characterization of the coherence time of the ultra-fast hard x-ray pulse, which fundamentally influences the interaction process between x-rays and materials. Conventional optical methods, based on autocorrelation, are very difficult to realize due to the lack of mirrors. Here, we experimentally demonstrate a novel method which yields a coherence time of 174.7 attoseconds for the 6.92 keV FEL pulses at the Linac Coherent Light Source. In our experiment, a phase shifter is adopted to control the cross-correlation between x-ray and microbunched electrons. This approach provides critical diagnostics for the temporal coherence of x-ray FELs and is universal for general machine parameters; applicable for wide range of photon energy, radiation brightness, repetition rate and FEL pulse duration. Nature Publishing Group UK 2020-04-06 /pmc/articles/PMC7136262/ /pubmed/32249769 http://dx.doi.org/10.1038/s41598-020-60328-4 Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Zhou, Guanqun
Decker, Franz-Josef
Ding, Yuantao
Jiao, Yi
Lutman, Alberto A.
Maxwell, Timothy J.
Raubenheimer, Tor O.
Wang, Jiuqing
Holman, Aaron J.
Tsai, Cheng-Ying
Wu, Jerome Y.
Wu, Weiwei
Yang, Chuan
Yoon, Moohyun
Wu, Juhao
Attosecond Coherence Time Characterization in Hard X-Ray Free-Electron Laser
title Attosecond Coherence Time Characterization in Hard X-Ray Free-Electron Laser
title_full Attosecond Coherence Time Characterization in Hard X-Ray Free-Electron Laser
title_fullStr Attosecond Coherence Time Characterization in Hard X-Ray Free-Electron Laser
title_full_unstemmed Attosecond Coherence Time Characterization in Hard X-Ray Free-Electron Laser
title_short Attosecond Coherence Time Characterization in Hard X-Ray Free-Electron Laser
title_sort attosecond coherence time characterization in hard x-ray free-electron laser
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7136262/
https://www.ncbi.nlm.nih.gov/pubmed/32249769
http://dx.doi.org/10.1038/s41598-020-60328-4
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