High repetition rate high harmonic generation with ultra-high photon flux

Tschernajew M, Haedrich S, Klas R, Gebhardt M, Horsten R, Werdenburg S, Pyatchenkov S, Coene W, Rothhardt J, Eidam T, Limpert J (2021)

Publication Type: Conference contribution

Publication year: 2021

Publisher: Institute of Electrical and Electronics Engineers Inc.

Conference Proceedings Title: 2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021

Event location: Munich, DEU

ISBN: 9781665418768

DOI: 10.1109/CLEO/Europe-EQEC52157.2021.9542198

Abstract

High-harmonic generation (HHG) driven by ultrashort laser pulses is an established process for the generation of coherent extreme ultraviolet (XUV) to soft X-ray radiation, which has found widespread use in various applications [1]. In recent years photon-hungry applications such as coherent diffractive imaging [2] , [3] and applications based on statistical analysis [3] have required more powerful HHG sources, in particular, at high repetition rates. This need can be addressed by using high average power fiber lasers as the HHG drivers [4]. Here, we present a HHG-based XUV source, capable of providing a large photon flux across a wide range between 66 eV and 150 eV. It is driven by a commercial XUV beamline from Active Fiber Systems GmbH consisting of 100-W average power fiber-laser system, delivering up to 300J at <300-fs pulse duration. For HHG this system is operated at 100 W, 600 kHz. A post-compression unit is part of the device to shorten the pulses to ~35 fs, the average power remains at 63W. The turnkey source can provide unprecedented photon fluxes of >10 11 photons/s in each harmonic between 69 eV and 75 eV (HH57-HH63). All fluxes are given at the generation point, i.e. directly after the source.

Involved external institutions

Active Fiber Systems (AFS) DE Germany (DE) Friedrich-Schiller-Universität Jena DE Germany (DE) Delft University of Technology (TU Delft) NL Netherlands (NL)

How to cite

APA:

Tschernajew, M., Haedrich, S., Klas, R., Gebhardt, M., Horsten, R., Werdenburg, S.,... Limpert, J. (2021). High repetition rate high harmonic generation with ultra-high photon flux. In 2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021. Munich, DEU: Institute of Electrical and Electronics Engineers Inc..

MLA:

Tschernajew, Maxim, et al. "High repetition rate high harmonic generation with ultra-high photon flux." Proceedings of the 2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021, Munich, DEU Institute of Electrical and Electronics Engineers Inc., 2021.

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