867. Wilhelm and Else Heraeus Seminar on "Quantum Electron-Photon Interactions"

21 Sept 2026, 08:00 → 24 Sept 2026, 16:00 Europe/Prague

Charles University (Prague)

Martin Kozák (Charles University, Faculty of Mathematics and Physics), Andrea Konečná (BUT Brno), Peter Hommelhoff (FAU Erlangen-Nürnberg/LMU Munich)

Monday 21 September

09:00 → 09:30 Welcome coffee

09:30 → 09:40 Welcome & introduction

Speakers: Prof. Andrea Konečná (BUT Brno), Martin Kozák (Charles University, Faculty of Mathematics and Physics), Peter Hommelhoff (Laserphysik, FAU, Erlangen)

09:40 → 10:15 Zhexin Zhao - Control free-electron—light interaction for nanophotonic particle accelerators and quantum applications (invited)

Speaker: Zhexin Zhao (Department of Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg)

10:15 → 10:50 Clarisse Woodahl - Free-electron spin polarization on a laser driven nanostructure chip (invited)

Speaker: Clarisse Woodahl (Stanford University)

10:50 → 11:20 Coffee break

11:20 → 11:55 Ofer Kfir - Beyond energy exchanges: elastic quantum electron-photon coupling (invited)

Speaker: Ofer Kfir (School of Electrical and Computer Engineering, Tel Aviv University)

11:55 → 12:30 Michael Krüger - Ultrafast electron-light interactions in nanoscale systems (invited)

Speaker: Michael Krueger (Technion – Israel Institute of Technology, 32000 Haifa, Israel)

12:30 → 13:30 Lunch break

13:30 → 14:05 Thomas Juffmann - Optical Near-field Electron Microscopy (ONEM): Damage-free, label- free super-resolution imaging of interfaces (invited)

Speaker: Thomas Juffmann (Max Perutz Labs, University of Vienna)

14:05 → 14:40 Yuya Morimoto - Development of a 40-keV pulsed electron beam line and attosecond optical shaping (invited)

Speaker: Yuya Morimoto (RIKEN)

14:40 → 15:15 Sascha Schäfer - Laser-driven cold-field emitter combined with a probe aberration corrector (invited)

Speaker: Sascha Schäfer (Univ. Regensburg)

15:15 → 15:45 Coffee break

15:45 → 16:20 Oh-Hoon Kwon - Ultrafast imaging of carriers surfing on sound waves in two-dimensional semiconductors (invited)

Speaker: Oh-Hoon Kwon (Korea Advanced Institute of Science and Technology)

16:20 → 16:55 Ding-Shyue Yang - Reflection Ultrafast Electron Diffraction Reveals Ultrafast Coupling in Layered Materials and Overall Energy Transport Dynamics across Multi-Component Junctions (invited)

Speaker: Prof. Ding-shyue Yang (University of Houston)

16:55 → 17:15 Petr Koutenský - Ultrafast 4D STEM imaging of optical near-fields (hot topic)

Speaker: Petr Koutenský (Charles University)

17:15 → 17:35 Mark van Rijt - Ultrafast (S)TEM with the combination of an RF cavity and a Nanopulser (hot topic)

Speaker: Mark van Rijt (Thermo Fisher Scientific)

19:00 → 22:00 Joint dinner

Tuesday 22 September

08:30 → 09:05 Sophie Meuret - Investigating the lasing properties of a nanolaser with an ultrafast transmission electron microscope (invited)

Speaker: Sophie Meuret (CEMES)

09:05 → 09:40 Peter Baum - Ultrafast Electron Microscopy with Single and Multiple Electrons (invited)

Speaker: Peter Baum (Universität Konstanz, Fachbereich Physik)

09:40 → 10:00 Group photo

10:00 → 10:30 Coffee break

10:30 → 11:05 Herman Batelaan - Quantum Force and Space-Time Topology (invited)

Speaker: herman batelaan (University of Nebraska-Lincoln)

11:05 → 11:40 F. Javier García de Abajo - When free electrons meet light: Quantum interactions at the nanoscale (invited)

Speaker: F. Javier García de Abajo (ICFO-Institut de Ciencies Fotoniques)

11:40 → 12:00 Yiqi Fang - Free-electron quantum state tomography by spectral shearing interferometry (hot topic)

Speaker: Yiqi Fang (FAU)

12:00 → 12:20 Cruz Ignacio Velasco - Super-sensitive measurements of optical phases using free electrons (hot topic)

Speaker: Cruz Ignacio Velasco (ICFO - The Institute of Photonic Sciences)

12:20 → 13:30 Lunch break

13:30 → 15:00 Poster flashes

15:00 → 18:30 Poster session

19:00 → 22:00 Conference dinner

Wednesday 23 September

08:30 → 08:50 Stefan Jorda - Presentation of Wilhelm und Else Heraeus Foundation

Speaker: Stefan Jorda (WE Heraeus Foundation)

08:50 → 09:25 Bolin Liao - Spatial-temporal Imaging of Photocarrier Dynamics Using Scanning Ultrafast Electron Microscopy (invited)

Speaker: Bolin Liao (Department of Mechanical Engineering, UCSB)

09:25 → 10:00 Bradley J. Siwick - Chirality transfer between light and phonons probed by ultrafast electron diffuse scattering (invited)

Speaker: Bradley J. Siwick (Department of Physics, Center for the Physics of Materials, McGill University, Montreal, Canada,Department of Chemistry, McGill University, Montreal, Canada)

10:00 → 10:30 Coffee break

10:30 → 11:05 Philipp Haslinger - From Free-Electron Bound-Electron Resonant Interactions to Sensing of Microwave-Driven Spin Precession with Free Electrons (invited)

Speaker: Philipp Haslinger (Atominstitut, TU-Wien)

11:05 → 11:40 Armin Feist - Tailored multi-particle correlations enabled by high-efficiency electron-light-coupling (invited)

Speaker: Armin Feist (Max Planck Institute for Multidisciplinary Sciences)

11:40 → 12:00 Leshi Zhao - High-Dimensional Entanglement with Orbital Angular Momentum States of Quantum Structured Free Electron (hot topic)

Speaker: Leshi Zhao (Peking University)

12:00 → 13:00 Lunch break

13:00 → 13:35 Aviv Karnieli - Towards entanglement of free-electron pairs and free-electron–bound-electron systems (invited)

Speaker: Aviv Karnieli (Stanford University)

13:35 → 13:55 Isobel Bicket - Experimental Demonstration of Electron-Photon Entanglement (hot topic)

Speaker: Isobel Bicket (isobel.bicket@tuwien.ac.at)

13:55 → 14:15 Jan-Wilke Henke - Demonstrating Quantum Entanglement between Free Electrons and Photons (hot topic)

Speaker: Jan-Wilke Henke (MPI for Multidisciplinary Sciences)

15:00 → 18:00 Guided tour to Prague Castle

Thursday 24 September

08:30 → 09:05 Nahid Talebi - Probing quasi-particle interactions in two-dimensional materials with cathodoluminescence spectroscopy (invited)

Speaker: Nahid Talebi (Deutschland)

09:05 → 09:40 Albert Polman - Coherent electron-plasmon scattering and semiconductor carrier dynamics in the USEM-CL (invited)

Speaker: Albert Polman (AMOLF)

09:40 → 10:00 Osip Schwartz - Measuring photon-photon scattering in vacuum mediated by virtual electron-positron pairs (hot topic)

Speaker: Osip Schwartz (Weizmann Institute of Science)

10:00 → 10:30 Coffee break

10:30 → 10:50 Heyu Wang - Spatially resolved EELS and CL coincidence spectroscopy of three-dimensional plasmonic chiral structures (hot topic)

Speaker: Heyu WANG (CNRS Laboratoire de physique des solides)

10:50 → 11:10 Alissa Freilinger - Cathodoluminescence Excitation Spectroscopy: Towards resonant excitation of two-level systems by free electrons (hot topic)

Speaker: Alissa Freilinger (CNRS/Université Paris-Saclay)

11:10 → 11:30 Feiyan Zhao - Angular-Resolved Polarimetry of Smith-Purcell Radiation (hot topic)

Speaker: Feiyan Zhao

11:30 → 12:30 Discussion & Closing remarks