Research
ELECTRON BEAM SHAPING
We pioneered electron beam shaping, achieving key milestones such as the first non-diffracting Bessel Beam, Laguerre-Gaussian beams, and an orbital angular momentum (OAM) sorter. Using holograms and MEMS-based phase plates, we advanced beam control and integration with Thermo Fisher TEMs, culminating in the creation of an electrostatic phase plate generating the largest recorded OAM.
AI-based Microscopy Automation
We developed Convolutional Neural Networks (CNN) able to assess the alignment of the microscope from single images. We successfully tested it on the OAM sorter [E. Rotunno et al., Ultramicroscopy (2021) ] and by directly connecting it to the Titan-Holo TEM at the Ernst Ruska centre in Forschungszentrum Julich [P. Rosi et al, Microsc. Microanal. (2022) ] we demonstrated the first automatic alignment routine for electron optical devices.
Advanced Spectroscopy
We pioneered electron beam shaping, achieving key milestones such as the first non-diffracting Bessel Beam, Laguerre-Gaussian beams, and an orbital angular momentum (OAM) sorter. Using holograms and MEMS-based phase plates, we advanced beam control and integration with Thermo Fisher TEMs, culminating in the creation of an electrostatic phase plate generating the largest recorded OAM.
Quantum Enhanced Microscopy
In collaboration with TFS, we developed a novel aperture holder for the illumination system, enabling light injection and collection to facilitate electron-light interactions. Applications include shaping the electron beam, coincidence ghost imaging via quantum entanglement, Ramsey holography, electron beam temporal modulation, differential plasmon excitation, inelastic quantum state tomography, and dynamic imaging of periodic phenomena.