Publication:
High spatial coherence and short pulse duration revealed by the Hanbury Brown and Twiss interferometry at the European XFEL

Дата
2021
Авторы
Gerasimova, N.
Mercurio, G.
Assalauova, D.
Carnis, J.
Khubbutdinov, R.
Menushenkov, A. P.
Vartanyants, I. A.
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Научные группы
Организационные подразделения
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Организационная единица
Институт лазерных и плазменных технологий
Стратегическая цель Института ЛаПлаз – стать ведущей научной школой и ядром развития инноваций по лазерным, плазменным, радиационным и ускорительным технологиям, с уникальными образовательными программами, востребованными на российском и мировом рынке образовательных услуг.
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Аннотация
© 2021 Author(s).Second-order intensity interferometry was employed to study the spatial and temporal properties of the European X-ray Free-Electron Laser (EuXFEL). Measurements were performed at the soft x-ray Self-Amplified Spontaneous Emission (SASE3) undulator beamline at a photon energy of 1.2 keV in the Self-Amplified Spontaneous Emission (SASE) mode. Two high-power regimes of the SASE3 undulator settings, i.e., linear and quadratic undulator tapering at saturation, were studied in detail and compared with the linear gain regime. The statistical analysis showed an exceptionally high degree of spatial coherence up to 90% for the linear undulator tapering. Analysis of the measured data in spectral and spatial domains provided an average pulse duration of about 10 fs in our measurements. The obtained results will be valuable for the experiments requiring and exploiting short pulse duration and utilizing high coherence properties of the EuXFEL.
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High spatial coherence and short pulse duration revealed by the Hanbury Brown and Twiss interferometry at the European XFEL / Gerasimova, N. [et al.] // Structural Dynamics. - 2021. - 8. - № 4. - 10.1063/4.0000127
URI
https://www.doi.org/10.1063/4.0000127
 https://www.scopus.com/record/display.uri?eid=2-s2.0-85113157395&origin=resultslist
 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000687351000001
 https://openrepository.mephi.ru/handle/123456789/24632
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