Sven Ebel PhD defense
5 November 2026, Sven Ebel successfully defended hus PhD thesis with the title “Cathodoluminescence Spectroscopy of Nanoscale Light-Matter Interactions”
During his PhD at POLIMA, Sven investigated how energetic electrons interact with nanoscale materials and generate light. Using cathodoluminescence spectroscopy, his research focused on understanding the underlying excitation mechanisms and developing new approaches to probe and control optical properties at the nanoscale.
Two published studies highlight this research:
- Substrate-assisted cathodoluminescence: Demonstrating indirect excitation by backscattered electrons and quantifying effective excitation currents using photon correlations. https://doi.org/10.1038/s44310-026-00116-6
- Velocity-tunable exciton–photon hybridization: Using electron-energy-tunable transition radiation to probe exciton–photon interactions in van der Waals crystals.
https://doi.org/10.1002/adfm.76737
The evaluation committee consisted of:
- Mathieu Kociak, Professor, Universite Paris-Saclay
- Laura Na Liu, Professor, University of Stuttgart
- Joel Cox, Professor, University of Southern Denmark
PhD supervisors have been:
- Sergii Morozov, POLIMA
- N. Asger Mortensen, POLIMA
