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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
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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.
Conference Presentation
© (2021) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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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