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ALBA II - Workshop on Coherence and Time-resolved X-ray Science

31 May 2021
Europe/Madrid timezone

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Session

Session II

31 May 2021, 11:00

Conveners

Session II: Session II

  • Chairman: Prof. Luis Roso (Centro de Láseres Pulsados)

Presentation materials

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  1. 5. Energy Conversion Pathways in Graphite from Attosecond Soft X-ray Spectroscopy
    Prof. Jens Biegert (ICFO, Spain)
    31/05/2021, 11:00

    The conversion of light to fundamental excitations of matter is governed by the build-up of electronic coherences and their dephasing to excited quasiparticles due to scattering processes, which occur on atto- and femtosecond timescales. Disentangling the interplay of these mechanisms, and how they lead to a specific flow of energy inside a material, is extremely challenging since many of...

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  2. 6. Tracking charge and spin dynamics using attosecond XUV pulses
    Prof. Martin Schultze (Technical University Graz)
    31/05/2021, 11:30

    Few cycle optical fields at allow manipulating electronic and spin degrees of freedom in solid state systems at optical clock rates faster than de-coherence. As an example I will discuss ultrafast bidirectional energy transfer between a light-field and the band-structure of silica and optically induced spin transfer in ferromagnetic heterostructures.

    About the speaker:
    Martin Schultze has...

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  3. 7. Structured EUV/soft x-ray attosecond pulses
    Dr Carlos Hernandez García (Universidad de Salamanca)
    31/05/2021, 12:00

    The quest of achieving complete control over the generation of coherent x-ray sources has driven the efforts over the scientific community during the last years due to their unique ability to capture the fastest electronic and spin dynamics in a wide variety of materials. Among other x-ray sources, high-harmonic generation (HHG) stands as a robust mechanism to generate highly spatially and...

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  4. 8. From femtoseconds to hours – measuring dynamics over 18 orders of magnitude with coherent X-rays
    Dr Felix Lehmkühler (Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
    31/05/2021, 12:30

    X-ray photon correlation spectroscopy (XPCS) enables the study of sample dynamics between micrometer and atomic length scales. As a coherent scattering technique, it significantly benefits from the increased brilliance of the next-generation synchrotron radiation and Free-Electron Laser (FEL) sources.

    In my presentation I will introduce the XPCS concepts and show some recent examples of...

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