A Near Fourier-Limited Pulse-Preserving Monochromator for Extreme-Ultraviolet Pulses in the Few-Fs Regime
Yudong Yang,
Tanja Neumann,
Julia Hengster,
Roland E. Mainz,
Jakob Elsner,
Oliver D. Mücke,
Franz X. Kärtner,
Thorsten Uphues
Affiliations
Yudong Yang
Center for Free Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
Tanja Neumann
Institute for Experimental Physics, University of Hamburg and Center for Free Electron Laser Science CFEL, Luruper Chaussee 149, 22761 Hamburg, Germany
Julia Hengster
Institute for Experimental Physics, University of Hamburg and Center for Free Electron Laser Science CFEL, Luruper Chaussee 149, 22761 Hamburg, Germany
Roland E. Mainz
Center for Free Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
Jakob Elsner
Department of Applied Sciences and Health, Coburg University of Applied Sciences and Arts, Friedrich-Streib-Straße 2, 96450 Coburg, Germany
Oliver D. Mücke
Center for Free Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
Franz X. Kärtner
Center for Free Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
Thorsten Uphues
Institute for Experimental Physics, University of Hamburg and Center for Free Electron Laser Science CFEL, Luruper Chaussee 149, 22761 Hamburg, Germany
We present a pulse-preserving multilayer-based extreme-ultraviolet (XUV) monochromator providing ultra-narrow bandwidth (ΔE0.6eV, Ec=92eV) and compact footprint (28×10cm2) for easy integration into high-harmonic generation (HHG) or free-electron laser (FEL) sources. The temporal resolution of the novel design supports pulse durations of typical pump–probe setups in the femtosecond and attosecond regime, depending on the mirror design and focusing geometries over the tuning range of the monochromator. The theoretical design is analyzed and experimentally characterized in a laser-driven HHG setup.
