Journal
HIGH POWER LASERS AND APPLICATIONS
Volume 11777, Issue -, Pages -Publisher
SPIE-INT SOC OPTICAL ENGINEERING
DOI: 10.1117/12.2591309
Keywords
high average power OPCPA MIR-systems; soft X-ray High Harmonic Generation (HHG); absorption edges of metals; transversal magnetic optical Kerr effect (TMOKE)
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The translation discusses two OPCPA systems operating at central wavelengths of 2.1 μm and 3.1 μm, providing high-energy, high-frequency pulses. Impressive data on photon flux levels in high harmonic generation were determined using calibrated measurement tools. Additionally, an experiment investigating the dynamics of optical magnetic switching serves as a benchmark for future research.
Two OPCPA-systems at central wavelengths of 2.1 mu m (in operation) and 3.1 mu m (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 similar to 10(9) photons/eV/s @ 150 eV, similar to 10(7) photons/eV/s @ 350 eV and similar to 10(6) 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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