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An Experimental Protocol for Femtosecond NIR/UV - XUV Pump-Probe Experiments with Free-Electron Lasers

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The SwissFEL Experimental Laser facility.

Christian Erny¹, Christoph Peter Hauri¹

¹SwissFEL, Paul Scherrer Institute, Villigen PSI 5232, Switzerland.

Journal of Synchrotron Radiation

|September 1, 2016

Summary

This summary is machine-generated.

The Paul Scherrer Institute

Keywords:

FEL pump–probe experiment user laser

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Area of Science:

Laser physics
X-ray science
Materials science

Background:

SwissFEL, a hard X-ray laser, is nearing completion at the Paul Scherrer Institute.
Time-resolved experiments require synchronized X-ray and optical laser pulses.

Purpose of the Study:

To present the integrated optical laser facility for SwissFEL.
To detail the system design for reliable user operation.

Main Methods:

Integration of a Ti:sapphire laser amplifier system.
Implementation of frequency conversion stages.
Inclusion of drift compensation mechanisms.

Main Results:

A versatile optical laser infrastructure is established.
Advanced laser performance across UV to THz range is achieved.
Precise X-ray and optical pulse delay control is ensured.

Conclusions:

The described laser system concept enables 24/7 user operation.
The facility provides essential capabilities for advanced time-resolved X-ray experiments.
High availability and long-term stability are key features of the laser system.