High average power OPCPA MIR-systems for coherent soft x-ray generation accessing absorption edges of metals

M. van Mörbeck-Bock; T. Feng; A. Heilmann; L. Ehrentraut; H. Stiel; M. Hennecke; T. Sidiropoulos; C. von Korff Schmising; S. Eisebitt; M. Schnürer

doi:10.1117/12.2591309

18 April 2021 High average power OPCPA MIR-systems for coherent soft x-ray generation accessing absorption edges of metals

M. van Mörbeck-Bock, T. Feng, A. Heilmann, L. Ehrentraut, H. Stiel, M. Hennecke, T. Sidiropoulos, C. von Korff Schmising, S. Eisebitt, M. Schnürer

Author Affiliations +

Proceedings Volume 11777, High Power Lasers and Applications; 117770C (2021) https://doi.org/10.1117/12.2591309
Event: SPIE Optics + Optoelectronics, 2021, Online Only

Abstract

Two OPCPA-systems at central wavelengths of 2.1 μm (in operation) and 3.1 μµm (under construction) provide pulses with a temporal duration of 4 cycles at a pulse repetition rate of 10 kHz and an average power of about 30 W. Both systems feature a single pump laser design with a powerful thin disk Yb:YAG pumplaser. Concept, simulation and beam emission characteristics are discussed. Flux levels in high harmonic generation of ~10⁹ photons/eV/s @ 150 eV, ~10⁷ photons/eV/s @ 350 eV and ~10⁶ photons/eV/s @ 450 eV have been determined with absolutely calibrated measurement tools. An IR-pump - soft X-ray scattering probe experiment at the Gd N-edge (150 eV) employing the transversal magnetic optical Kerr effect (TMOKE) investigates dynamics of optical magnetic switching and serves as a benchmark for future studies.

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M. van Mörbeck-Bock, T. Feng, A. Heilmann, L. Ehrentraut, H. Stiel, M. Hennecke, T. Sidiropoulos, C. von Korff Schmising, S. Eisebitt, and M. Schnürer "High average power OPCPA MIR-systems for coherent soft x-ray generation accessing absorption edges of metals", Proc. SPIE 11777, High Power Lasers and Applications, 117770C (18 April 2021); https://doi.org/10.1117/12.2591309

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