22–26 Aug 2022
Trieste Convention Centre
Europe/Zurich timezone

Generation of High-Power Free-Electron Laser Pulses with Orbital Angular Momentum

TUP21
23 Aug 2022, 16:00
2h
Exhibition Hall (Trieste Convention Centre)

Exhibition Hall

Trieste Convention Centre

Contributed Poster Novel acceleration and FEL concepts Tuesday posters

Speakers

Jiawei Yan (European XFEL GmbH) Gianluca Geloni (European XFEL GmbH)

Description

The generation of x-ray pulses carrying orbital angular momentum from an x-ray free-electron laser (FEL) has attracted considerable attention due to the ability to directly change atomic states and develop new material characterization techniques. In this contribution, we report a new method for generating intense x-ray vortices. The method is based on the widely used self-amplified spontaneous emission scheme and does not require additional helical undulators or external laser systems. It can therefore in principle be employed by all existing XFEL facilities with limited hardware additions.

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Primary authors

Jiawei Yan (European XFEL GmbH) Gianluca Geloni (European XFEL GmbH)

Presentation materials

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