activity
20172025
most citedFew-nm tracking of magnetic vortex orbits and their decay with ultrafast Lorentz microscopy

80 citations · 232 across the 6 of their papers we have counts for

collaborators

6 papers

cond-mat.mes-hall2025

Roadmap for Quantum Nanophotonics with Free Electrons

F. Javier García de Abajo, Albert Polman, Cruz I. Velasco +44

Over the past century, continuous advancements in electron microscopy have enabled the synthesis, control, and characterization of high-quality free-electron beams. These probes ca…

physics.optics2023★ 71 cited

Attosecond electron microscopy by free-electron homodyne detection

John H. Gaida, Hugo Lourenço-Martins, Murat Sivis +4

Time-resolved electron microscopy aims at tracking nanoscale excitations and dynamic states of matter with a temporal resolution ultimately reaching the attosecond regime. Periodic…

cond-mat.mes-hall2022★ 68 cited

Coulomb-correlated electron number states in a transmission electron microscope beam

Rudolf Haindl, Armin Feist, Till Domröse +4

We demonstrate the generation of Coulomb-correlated pair, triple and quadruple states of free electrons by femtosecond photoemission from a nanoscale field emitter inside a transmi…

cond-mat.mes-hall2021

Pinning and gyration dynamics of magnetic vortices revealed by correlative Lorentz and bright-field imaging

Marcel Möller, John H. Gaida, Claus Ropers

Topological magnetic textures are of great interest in various scientific and technological fields. To allow for precise control of nanoscale magnetism, it is of great importance t…

cond-mat.mes-hall2019★ 80 cited

Few-nm tracking of magnetic vortex orbits and their decay with ultrafast Lorentz microscopy

Marcel Möller, John Henri Gaida, Sascha Schäfer +1

Transmission electron microscopy is one of the most powerful techniques to characterize nanoscale magnetic structures. In light of the importance of fast control schemes of magneti…

cond-mat.mes-hall2017★ 13 cited

Polarized photoluminescence clocks ultrafast pseudospin relaxation in graphene

Thomas Danz, Andreas Neff, John H. Gaida +3

Electronic states in 2D materials can exhibit pseudospin degrees of freedom, which allow for unique carrier-field interaction scenarios. Here, we investigate ultrafast sublattice p…