Probing Nonlinear Optical States with Free Electrons
Ultrafast transmission electron microscopes present a powerful platform for studying the interaction between free electrons and light at the nanometer- and femtosecond scale. Electron energy gain spectroscopy (EEGS) harnesses coherent electron-photon scattering to probe optical excitations with a spectral resolution determined by the light source. Recently, this was applied to study resonances in chip-based microcavities with a spectral resolution unprecedented in a conventional transmission electron microscope (TEM) [1]. The observed strong electron-light interaction, drawing from resonant field enhancement and electron-light phase matching, opens up new avenues for efficient electron beam shaping and the exploration of free electron quantum optics.
Authors
- Rui Ning Wang (ORCID: https://orcid.org/0000-0002-5704-3971)
- Alexander Tusnin (ORCID: https://orcid.org/0000-0002-9997-9436)
- Armin Feist (ORCID: https://orcid.org/0000-0003-1434-8895)
- Guanhao Huang (ORCID: https://orcid.org/0000-0001-7803-804X)
- Claus Ropers (ORCID: https://orcid.org/0000-0002-9539-3817)
- Zheru Qiu (ORCID: https://orcid.org/0000-0002-6465-026X)
- Arslan S. Raja (ORCID: https://orcid.org/0000-0003-1402-4583)
- Yujia Yang (ORCID: https://orcid.org/0000-0003-1524-7973)
- Alexey Tikan (ORCID: https://orcid.org/0000-0001-9701-0392)
- Germaine Arend (ORCID: https://orcid.org/0000-0003-3241-7348)
- Jan-Wilke Henke (ORCID: https://orcid.org/0000-0003-4581-1010)
- Tobias J. Kippenberg (ORCID: https://orcid.org/0000-0002-3408-886X)
- F. Jasmin Kappert (ORCID: https://orcid.org/0009-0002-5625-8310)
Institutions
- Max Planck Institute for Multidisciplinary Sciences (DE)
- École Polytechnique Fédérale de Lausanne (CH)
Publication Details
- Published
- 2025-06-23
- DOI
- https://doi.org/10.1109/cleo/europe-eqec65582.2025.11110918
- Primary Topic
- Laser-Matter Interactions and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00