Mechanical design and implementation of a High Harmonic Generation source at the SXP instrument

TUP41
16 Sept 2025, 17:00
1h
Poster Session Room (The Loop)

Poster Session Room

The Loop

Poster Presentation End Stations Tuesday Poster Session

Speaker

Vahagn Vardanyan (European X-Ray Free-Electron Laser)

Description

The Time-Resolved X-Ray Photoelectron Spectroscopy (TR-XPES) experimental station at the Soft X-ray Port - SXP Scientific Instrument of the European XFEL has been developed to perform femtosecond time-resolved photoelectron spectroscopy experiments on solids. The SXP Scientific Instrument opens new scientific opportunities for fs TR-XPES, including core level photoelectron spectroscopy (XPS), photoelectron diffraction in forward scattering (XPD), and increased probing depth through higher electron kinetic energies. To further extend experimental capabilities, a laser-based High Harmonic Generation (HHG) source is under development. HHG pulses in the extreme ultraviolet (XUV) range up to 70 eV will be generated using a 1030 nm pump laser with 200 μJ pulse energy at a nominal 334 kHz repetition rate. This photon energy range will enable to perform measurements more surface sensitive and allow to study of shallow core levels with high fidelity and the measurement of valence band dispersion with high angular precision. This contribution describes the mechanical design, key technological developments, implementation, and current status of the HHG source at the SXP Instrument.

Author

Vahagn Vardanyan (European X-Ray Free-Electron Laser)

Co-authors

Patrik Grychtol (European X-Ray Free-Electron Laser) Pranav Bhardwaj (European X-Ray Free-Electron Laser) David Doblas-Jimenez (European X-Ray Free-Electron Laser) Michael Heber (Deutsches Elektronen-Synchrotron DESY, European X-Ray Free-Electron Laser) Manuel Izquierdo (European X-Ray Free-Electron Laser)

Presentation materials

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