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End date: 2022 × Start date: 2020 × Type: article × Publisher: Bristol : IOP Publ. × Subject: Attoseconds × WGL Institute: MBI ×

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    Robust transverse structures in rescattered photoelectron wavepackets and their consequences
    (Bristol : IOP Publ., 2020) Bredtmann, T.; Patchkovskii, S.
    Initial-state symmetry has been under-appreciated in strong-field spectroscopies, where laser fields dominate the dynamics. We demonstrate numerically that the transverse photoelectron phase structure, arising from the initial-state symmetry, is robust in strong-field rescattering, and has pronounced effects on strong-field photoelectron spectra. Interpretation of rescattering experiments need to take these symmetry effects into account. In turn, robust transverse photoelectron phase structures may enable attosecond sub-Ångström super-resolution imaging with structured electron beams.
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    Generation and characterization of isolated attosecond pulses for coincidence spectroscopy at 100 kHz repetition rate
    (Bristol : IOP Publ., 2020) Witting, T.; Furch, F.; Osolodkov, M.; Schell, F.; Menoni, C.; Schulz, C.P.; Vrakking, M.J.J.
    An attosecond pump-probe beamline with 100 kHz repetition rate for coincidence experiments has been developed. It is based on non-collinear optical parametric chirped pulse ampli-cation and delivers 100 µJ sub-4 fs to an high-harmonic generation source. Details on the generation and characterization of isolated attosecond pulses will be presented. © 2019 Published under licence by IOP Publishing Ltd.