IV. Physical Institute - Ropers group
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Selected Publications

  • Unprecedented views into modelocking (Nature Photonics, 2016)

  • Quantum Coherent Manipulation of Free Electrons (Nature, 2015)

  • Ultrafast Low-Energy Electron Diffraction (Science, 2014)

  • Terahertz Control of Nanotip Photoemission (Nature Physics, 2014)

  • Extreme-ultraviolet fluorescence in plasmonic nanostructures (Nature Physics, 2013)

  • Prof. Dr. Claus Ropers
    Tel.: +49 551 39-4549
    Raum: B.03.115
    Dr. Sascha Schäfer
    Tel.: +49 551 39-4576
    Raum: B.03.109
    Dr. Murat Sivis
    Tel.: +49 551 39-4535
    Raum: B.03.101A

    Ultrafast Dynamics

    We investigate ultrafast electronic and structural dynamics in condensed matter systems. Employing laser-pump / electron-probe schemes in various configurations and at different energies, we develop and apply new experimental techniques based on imaging with ultrashort electron pulses from nanoscopic cathodes. Our activities include:

    Nano Optics

    We study highly nonlinear optical processes in metallic nanostructures. Specific topics include:

    • Localized photoemission from metal nanotips

    • Terahertz and mid-infrared control of nanostructure photoemission

    • Extreme-ultraviolet light generation in plasmonic structures

    • Lensless imaging using high harmonic radiation


    Nonlinear Fiber Optics

    Besides the main activities of the group, we study nonlinear phenomena of pulse propagation in optical fibers. Examples include the characterization and active control of optical supercontinuum generation.