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Jonas Knurr

Cette personne a quitté l’EPFL

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Publications associées (4)

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Demonstration of full polarization control of soft X-ray pulses with Apple X undulators at SwissFEL using recoil ion momentum spectroscopy

Ningchen Yang, Christoph Bostedt, Jonas Knurr, Iwona Swiderska

The ability to freely control the polarization of X-rays enables measurement techniques relying on circular or linear dichroism, which have become indispensable tools for characterizing the properties of chiral molecules or magnetic structures. Therefore, ...

INT UNION CRYSTALLOGRAPHY2024

Attosecond transient absorption spooktroscopy: a ghost imaging approach to ultrafast absorption spectroscopy

Jonas Knurr, Christoph Bostedt, Andre Al Haddad, Zhaoheng Guo

The recent demonstration of isolated attosecond pulses from an X-ray free-electron laser (XFEL) opens the possibility for probing ultrafast electron dynamics at X-ray wavelengths. An established experimental method for probing ultrafast dynamics is X-ray t ...

ROYAL SOC CHEMISTRY2020

Design and implementation of a soft X-ray absorption spectroscopy setup for liquid samples at SwissFEL

Jonas Knurr

This thesis presents the development and implementation of a novel experimental setup for time-resolved soft X-ray absorption spectroscopy on liquid samples at SwissFEL. The setup allows the investigation of important absorption edges, such as the nitrogen ...

EPFL2024

Widely tunable two-color x-ray free-electron laser pulses

Christoph Bostedt, Jonas Knurr

We demonstrate the generation of widely tunable two-color x-ray free-electron laser (FEL) pulses at Swiss-FEL. In a split-undulator configuration, each color is produced in a different undulator section, and a chicane between the two sections allows for a ...

AMER PHYSICAL SOC2022