IV. Physical Institute - Ropers group
IV. Physical Institute - Ropers group

IV. Physical Institute - Ropers group

Recent Highlight: Dynamics of Solitons in Real-Time

Soliton16_small In a recent publication, we study the dynamics of bound states of light pulses, so-called soliton molecules, in a femtosecond laser. Based on a novel real-time acquisition scheme, the experiments resolve the formation of soliton molecules and reveal their complex internal dynamics. The work was published in Science on April 7th 2017.

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:


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