Double-pulse speckle contrast correlations with near Fourier transform limited free-electron laser light using hard X-ray split-and-delay

Abstract The ability to deliver two coherent X-ray pulses with precise time-delays ranging from a few femtoseconds to nanoseconds enables critical capabilities of probing ultra-fast phenomena in condensed matter systems at X-ray free electron laser (FEL) sources. Recent progress made in the hard X-r...

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Autores principales:	Wojciech Roseker, Sooheyong Lee, Michael Walther, Felix Lehmkühler, Birgit Hankiewicz, Rustam Rysov, Stephan O. Hruszkewycz, G. Brian Stephenson, Mark Sutton, Paul H. Fuoss, Marcin Sikorski, Aymeric Robert, Sanghoon Song, Gerhard Grübel
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e0651e6ca7a943aea1bb475f568f06ed
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spelling	oai:doaj.org-article:e0651e6ca7a943aea1bb475f568f06ed2021-12-02T16:31:17ZDouble-pulse speckle contrast correlations with near Fourier transform limited free-electron laser light using hard X-ray split-and-delay10.1038/s41598-020-61926-y2045-2322https://doaj.org/article/e0651e6ca7a943aea1bb475f568f06ed2020-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-61926-yhttps://doaj.org/toc/2045-2322Abstract The ability to deliver two coherent X-ray pulses with precise time-delays ranging from a few femtoseconds to nanoseconds enables critical capabilities of probing ultra-fast phenomena in condensed matter systems at X-ray free electron laser (FEL) sources. Recent progress made in the hard X-ray split-and-delay optics developments now brings a very promising prospect for resolving atomic-scale motions that were not accessible by previous time-resolved techniques. Here, we report on characterizing the spatial and temporal coherence properties of the hard X-ray FEL beam after propagating through split-and-delay optics. Speckle contrast analysis of small-angle scattering measurements from nanoparticles reveals well-preserved transverse coherence of the beam. Measuring intensity fluctuations from successive X-ray pulses also reveals that only single or double temporal modes remain in the transmitted beam, corresponding to nearly Fourier transform limited pulses.Wojciech RosekerSooheyong LeeMichael WaltherFelix LehmkühlerBirgit HankiewiczRustam RysovStephan O. HruszkewyczG. Brian StephensonMark SuttonPaul H. FuossMarcin SikorskiAymeric RobertSanghoon SongGerhard GrübelNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-9 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Wojciech Roseker Sooheyong Lee Michael Walther Felix Lehmkühler Birgit Hankiewicz Rustam Rysov Stephan O. Hruszkewycz G. Brian Stephenson Mark Sutton Paul H. Fuoss Marcin Sikorski Aymeric Robert Sanghoon Song Gerhard Grübel Double-pulse speckle contrast correlations with near Fourier transform limited free-electron laser light using hard X-ray split-and-delay
description	Abstract The ability to deliver two coherent X-ray pulses with precise time-delays ranging from a few femtoseconds to nanoseconds enables critical capabilities of probing ultra-fast phenomena in condensed matter systems at X-ray free electron laser (FEL) sources. Recent progress made in the hard X-ray split-and-delay optics developments now brings a very promising prospect for resolving atomic-scale motions that were not accessible by previous time-resolved techniques. Here, we report on characterizing the spatial and temporal coherence properties of the hard X-ray FEL beam after propagating through split-and-delay optics. Speckle contrast analysis of small-angle scattering measurements from nanoparticles reveals well-preserved transverse coherence of the beam. Measuring intensity fluctuations from successive X-ray pulses also reveals that only single or double temporal modes remain in the transmitted beam, corresponding to nearly Fourier transform limited pulses.
format	article
author	Wojciech Roseker Sooheyong Lee Michael Walther Felix Lehmkühler Birgit Hankiewicz Rustam Rysov Stephan O. Hruszkewycz G. Brian Stephenson Mark Sutton Paul H. Fuoss Marcin Sikorski Aymeric Robert Sanghoon Song Gerhard Grübel
author_facet	Wojciech Roseker Sooheyong Lee Michael Walther Felix Lehmkühler Birgit Hankiewicz Rustam Rysov Stephan O. Hruszkewycz G. Brian Stephenson Mark Sutton Paul H. Fuoss Marcin Sikorski Aymeric Robert Sanghoon Song Gerhard Grübel
author_sort	Wojciech Roseker
title	Double-pulse speckle contrast correlations with near Fourier transform limited free-electron laser light using hard X-ray split-and-delay
title_short	Double-pulse speckle contrast correlations with near Fourier transform limited free-electron laser light using hard X-ray split-and-delay
title_full	Double-pulse speckle contrast correlations with near Fourier transform limited free-electron laser light using hard X-ray split-and-delay
title_fullStr	Double-pulse speckle contrast correlations with near Fourier transform limited free-electron laser light using hard X-ray split-and-delay
title_full_unstemmed	Double-pulse speckle contrast correlations with near Fourier transform limited free-electron laser light using hard X-ray split-and-delay
title_sort	double-pulse speckle contrast correlations with near fourier transform limited free-electron laser light using hard x-ray split-and-delay
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/e0651e6ca7a943aea1bb475f568f06ed
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Double-pulse speckle contrast correlations with near Fourier transform limited free-electron laser light using hard X-ray split-and-delay

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